Basic College Mathematics (6th Edition) (What's New in Developmental Math)
6th Edition
ISBN: 9780134840420
Author: Elayn Martin-Gay
Publisher: PEARSON
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Chapter 9.2, Problem 4VRV
To determine
To fill: The blank in the statement “If a circle graph has percent labels, the percents should add up to ______.”
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4. (5 pts) Conduct a chi-square contingency test (test of independence) to assess whether
there is an association between the behavior of the elderly person (did not stop to talk,
did stop to talk) and their likelihood of falling. Below, please state your null and
alternative hypotheses, calculate your expected values and write them in the table,
compute the test statistic, test the null by comparing your test statistic to the critical
value in Table A (p. 713-714) of your textbook and/or estimating the P-value, and
provide your conclusions in written form. Make sure to show your work.
Did not stop walking to talk
Stopped walking to talk
Suffered a fall
12
11
Totals
23
Did not suffer a fall | 2
Totals
35
37
14
46
60
T
Question 2
Parts manufactured by an injection molding process are subjected to a compressive strength test. Twenty samples
of five parts each are collected, and the compressive strengths (in psi) are shown in Table 2.
Table 2: Strength Data for Question 2
Sample Number
x1
x2
23
x4
x5
R
1
83.0
2
88.6 78.3 78.8
3
85.7
75.8
84.3
81.2 78.7 75.7 77.0
71.0 84.2
81.0
79.1
7.3
80.2 17.6
75.2
80.4
10.4
4
80.8
74.4
82.5
74.1 75.7 77.5
8.4
5
83.4
78.4
82.6 78.2
78.9
80.3
5.2
File Preview
6
75.3
79.9
87.3 89.7
81.8
82.8
14.5
7
74.5
78.0 80.8
73.4
79.7
77.3
7.4
8
79.2
84.4 81.5 86.0
74.5
81.1
11.4
9
80.5
86.2
76.2 64.1
80.2
81.4
9.9
10
75.7
75.2
71.1 82.1
74.3
75.7
10.9
11
80.0 81.5
78.4 73.8
78.1
78.4
7.7
12
80.6
81.8
79.3
73.8
81.7 79.4
8.0
13
82.7
81.3
79.1
82.0 79.5 80.9
3.6
14
79.2
74.9
78.6 77.7
75.3
77.1
4.3
15
85.5 82.1
82.8 73.4
71.7
79.1
13.8
16
78.8 79.6
80.2 79.1
80.8 79.7
2.0
17
82.1
78.2
18
84.5
76.9
75.5
83.5 81.2
19
79.0 77.8
20
84.5
73.1
78.2 82.1
79.2 81.1 7.6
81.2 84.4 81.6 80.8…
Name:
Lab Time:
Quiz 7 & 8 (Take Home) - due Wednesday, Feb. 26
Contingency Analysis (Ch. 9)
In lab 5, part 3, you will create a mosaic plot and conducted a chi-square contingency test to
evaluate whether elderly patients who did not stop walking to talk (vs. those who did stop)
were more likely to suffer a fall in the next six months. I have tabulated the data below.
Answer the questions below. Please show your calculations on this or a separate sheet.
Did not stop walking to talk
Stopped walking to talk Totals
Suffered a fall
Did not suffer a fall
Totals
12
11
23
2
35
37
14
14
46
60
Quiz 7:
1. (2 pts) Compute the odds of falling for each group. Compute the odds ratio for those
who did not stop walking vs. those who did stop walking. Interpret your result verbally.
Chapter 9 Solutions
Basic College Mathematics (6th Edition) (What's New in Developmental Math)
Ch. 9.1 - Use the pictograph shown in Example 1 to answer...Ch. 9.1 - Use the pictograph shown in Example 2 to answer...Ch. 9.1 - Prob. 3PCh. 9.1 - Prob. 4PCh. 9.1 - Prob. 5PCh. 9.1 - Prob. 6PCh. 9.1 - Prob. 7PCh. 9.1 - Prob. 8PCh. 9.1 - Prob. 9PCh. 9.1 - Prob. 1VRV
Ch. 9.1 - Fill in each blank with one of the choices...Ch. 9.1 - Fill in each blank with one of the choices...Ch. 9.1 - Fill in each blank with one of the choices...Ch. 9.1 - Prob. 1ECh. 9.1 - Prob. 2ECh. 9.1 - Prob. 3ECh. 9.1 - Prob. 4ECh. 9.1 - Prob. 5ECh. 9.1 - Prob. 6ECh. 9.1 - Prob. 7ECh. 9.1 - Prob. 8ECh. 9.1 - The following pictograph shows the average number...Ch. 9.1 - The following pictograph shows the average number...Ch. 9.1 - The following pictograph shows the average number...Ch. 9.1 - Prob. 12ECh. 9.1 - Prob. 13ECh. 9.1 - Prob. 14ECh. 9.1 - Prob. 15ECh. 9.1 - Prob. 16ECh. 9.1 - Prob. 17ECh. 9.1 - Prob. 18ECh. 9.1 - The National Weather Service has exacting...Ch. 9.1 - The National Weather Service has exacting...Ch. 9.1 - The National Weather Service has exacting...Ch. 9.1 - The National Weather Service has exacting...Ch. 9.1 - Prob. 23ECh. 9.1 - Prob. 24ECh. 9.1 - Prob. 25ECh. 9.1 - Prob. 26ECh. 9.1 - Prob. 27ECh. 9.1 - Prob. 28ECh. 9.1 - Use the information given to draw a vertical bar...Ch. 9.1 - Use the information given to draw a vertical bar...Ch. 9.1 - Use the information given to draw a vertical bar...Ch. 9.1 - Prob. 32ECh. 9.1 - Prob. 33ECh. 9.1 - Prob. 34ECh. 9.1 - Prob. 35ECh. 9.1 - Prob. 36ECh. 9.1 - Prob. 37ECh. 9.1 - Prob. 38ECh. 9.1 - Prob. 39ECh. 9.1 - Prob. 40ECh. 9.1 - Prob. 41ECh. 9.1 - Prob. 42ECh. 9.1 - Prob. 43ECh. 9.1 - Prob. 44ECh. 9.1 - Prob. 45ECh. 9.1 - Prob. 46ECh. 9.1 - Prob. 47ECh. 9.1 - Prob. 48ECh. 9.1 - Prob. 49ECh. 9.1 - Prob. 50ECh. 9.1 - Prob. 51ECh. 9.1 - Prob. 52ECh. 9.1 - The following list shows the golf scores for an...Ch. 9.1 - Prob. 54ECh. 9.1 - Prob. 55ECh. 9.1 - Prob. 56ECh. 9.1 - Prob. 57ECh. 9.1 - Prob. 58ECh. 9.1 - Prob. 59ECh. 9.1 - Prob. 60ECh. 9.1 - Prob. 61ECh. 9.1 - Prob. 62ECh. 9.1 - Prob. 63ECh. 9.1 - Prob. 64ECh. 9.1 - Prob. 65ECh. 9.1 - Prob. 66ECh. 9.1 - Prob. 67ECh. 9.1 - Prob. 68ECh. 9.1 - Prob. 69ECh. 9.1 - Prob. 70ECh. 9.1 - Prob. 71ECh. 9.1 - Prob. 72ECh. 9.1 - Prob. 73ECh. 9.1 - Prob. 74ECh. 9.1 - Prob. 75ECh. 9.1 - Prob. 76ECh. 9.1 - Prob. 77ECh. 9.1 - Prob. 78ECh. 9.1 - Prob. 79ECh. 9.1 - Prob. 80ECh. 9.1 - Prob. 81ECh. 9.1 - Prob. 82ECh. 9.1 - Prob. 83ECh. 9.1 - Prob. 84ECh. 9.1 - Prob. 85ECh. 9.1 - Prob. 86ECh. 9.2 - Prob. 1PCh. 9.2 - Prob. 2PCh. 9.2 - Prob. 3PCh. 9.2 - Prob. 4PCh. 9.2 - Prob. 1VRVCh. 9.2 - Prob. 2VRVCh. 9.2 - Prob. 3VRVCh. 9.2 - Prob. 4VRVCh. 9.2 - Prob. 1ECh. 9.2 - Prob. 2ECh. 9.2 - Prob. 3ECh. 9.2 - Prob. 4ECh. 9.2 - Prob. 5ECh. 9.2 - Prob. 6ECh. 9.2 - Prob. 7ECh. 9.2 - Prob. 8ECh. 9.2 - Prob. 9ECh. 9.2 - The following circle graph shows the percent of...Ch. 9.2 - The total amount of land from the continents is...Ch. 9.2 - Prob. 12ECh. 9.2 - Prob. 13ECh. 9.2 - Prob. 14ECh. 9.2 - Prob. 15ECh. 9.2 - Prob. 16ECh. 9.2 - Prob. 17ECh. 9.2 - The following circle graph shows the percent of...Ch. 9.2 - If this library has 125,600 books, find how many...Ch. 9.2 - If this library has 125,600 books, find how many...Ch. 9.2 - If this library has 125,600 books, find how many...Ch. 9.2 - Prob. 22ECh. 9.2 - Prob. 23ECh. 9.2 - Prob. 24ECh. 9.2 - Prob. 25ECh. 9.2 - Prob. 26ECh. 9.2 - Prob. 27ECh. 9.2 - Objective B Fill in each table. Round to the...Ch. 9.2 - Write the prime factorization of each number. See...Ch. 9.2 - Write the prime factorization of each number. See...Ch. 9.2 - Prob. 31ECh. 9.2 - Prob. 32ECh. 9.2 - Prob. 33ECh. 9.2 - Prob. 34ECh. 9.2 - Prob. 35ECh. 9.2 - Prob. 36ECh. 9.2 - These oceans together make up 264,489,800 square...Ch. 9.2 - These oceans together make up 264,489,800 square...Ch. 9.2 - These oceans together make up 264,489,800 square...Ch. 9.2 - Prob. 40ECh. 9.2 - Prob. 41ECh. 9.2 - Prob. 42ECh. 9.2 - Prob. 43ECh. 9.2 - Prob. 44ECh. 9.2 - The following circle graph summarizes the results...Ch. 9.2 - Prob. 46ECh. 9.2 - Can the data below be represented by a circle...Ch. 9.2 - Prob. 48ECh. 9.3 - Prob. 1PCh. 9.3 - Prob. 2PCh. 9.3 - Prob. 3PCh. 9.3 - Find the median of the list of numbers: 5, 11, 14,...Ch. 9.3 - Find the median of the list of scores:
36, 91,...Ch. 9.3 - Find the mode of the list of numbers:
14, 10, 10,...Ch. 9.3 - Prob. 7PCh. 9.3 - Prob. 8PCh. 9.3 - Prob. 9PCh. 9.3 - Prob. 1VRVCh. 9.3 - Prob. 2VRVCh. 9.3 - Prob. 3VRVCh. 9.3 - Prob. 4VRVCh. 9.3 - Prob. 5VRVCh. 9.3 - Prob. 6VRVCh. 9.3 - Use the choices below to fill in each blank. Some...Ch. 9.3 - Mixed Practice For each set of numbers, find the...Ch. 9.3 - Mixed Practice For each set of numbers, find the...Ch. 9.3 - Prob. 3ECh. 9.3 - Prob. 4ECh. 9.3 - Prob. 5ECh. 9.3 - Prob. 6ECh. 9.3 - Prob. 7ECh. 9.3 - Prob. 8ECh. 9.3 - Prob. 9ECh. 9.3 - Prob. 10ECh. 9.3 - The 10 tallest buildings in the world, completed...Ch. 9.3 - The 10 tallest buildings in the world, completed...Ch. 9.3 - Prob. 13ECh. 9.3 - The 10 tallest buildings in the world, completed...Ch. 9.3 - Prob. 15ECh. 9.3 - Prob. 16ECh. 9.3 - Prob. 17ECh. 9.3 - Prob. 18ECh. 9.3 - Prob. 19ECh. 9.3 - Prob. 20ECh. 9.3 - Prob. 21ECh. 9.3 - Prob. 22ECh. 9.3 - In a mathematics class, the following test scores...Ch. 9.3 - In a mathematics class, the following test scores...Ch. 9.3 - The following pulse rates were recorded for a...Ch. 9.3 - Prob. 26ECh. 9.3 - Prob. 27ECh. 9.3 - Prob. 28ECh. 9.3 - Prob. 29ECh. 9.3 - Prob. 30ECh. 9.3 - Prob. 31ECh. 9.3 - Prob. 32ECh. 9.3 - Prob. 33ECh. 9.3 - Prob. 34ECh. 9.3 - Find the range for each data set. See Example...Ch. 9.3 - Find the range for each data set. See Example...Ch. 9.3 - Find the range for each data set. See Example...Ch. 9.3 - Prob. 38ECh. 9.3 - Prob. 39ECh. 9.3 - Prob. 40ECh. 9.3 - Prob. 41ECh. 9.3 - Prob. 42ECh. 9.3 - Prob. 43ECh. 9.3 - Prob. 44ECh. 9.3 - Prob. 45ECh. 9.3 - Use each graph of data items to find the a. mean,...Ch. 9.3 - Use each graph of data items to find the a. mean,...Ch. 9.3 - Use each graph of data items to find the a. mean,...Ch. 9.3 - Prob. 49ECh. 9.3 - Prob. 50ECh. 9.3 - Prob. 51ECh. 9.3 - Prob. 52ECh. 9.3 - Prob. 53ECh. 9.3 - Prob. 54ECh. 9.3 - Prob. 55ECh. 9.3 - Prob. 56ECh. 9.3 - Write each fraction in simplest form. See Section...Ch. 9.3 - Write a list of numbers for which you feel the...Ch. 9.4 - Prob. 1PCh. 9.4 - Prob. 2PCh. 9.4 - Prob. 3PCh. 9.4 - Prob. 4PCh. 9.4 - Prob. 5PCh. 9.4 - Prob. 1VRVCh. 9.4 - Prob. 2VRVCh. 9.4 - Prob. 3VRVCh. 9.4 - Use the choices below to fill in each blank....Ch. 9.4 - Use the choices below to fill in each blank....Ch. 9.4 - Use the choices below to fill in each blank....Ch. 9.4 - Prob. 1ECh. 9.4 - Prob. 2ECh. 9.4 - Prob. 3ECh. 9.4 - Prob. 4ECh. 9.4 - Prob. 5ECh. 9.4 - Prob. 6ECh. 9.4 - Draw a tree diagram for each experiment. Then use...Ch. 9.4 - Prob. 8ECh. 9.4 - Draw a tree diagram for each experiment. Then use...Ch. 9.4 - Prob. 10ECh. 9.4 - If a single die is tossed once, find the...Ch. 9.4 - If a single die is tossed once, find the...Ch. 9.4 - If a single die is tossed once, find the...Ch. 9.4 - Prob. 14ECh. 9.4 - Prob. 15ECh. 9.4 - Prob. 16ECh. 9.4 - Prob. 17ECh. 9.4 - If a single die is tossed once, find the...Ch. 9.4 - Prob. 19ECh. 9.4 - Prob. 20ECh. 9.4 - Prob. 21ECh. 9.4 - Prob. 22ECh. 9.4 - Suppose the spinner shown is spun once. Find the...Ch. 9.4 - Suppose the spinner shown is spun once. Find the...Ch. 9.4 - If a single choice is made from the bag of marbles...Ch. 9.4 - Prob. 26ECh. 9.4 - Prob. 27ECh. 9.4 - Prob. 28ECh. 9.4 - Prob. 29ECh. 9.4 - Prob. 30ECh. 9.4 - Prob. 31ECh. 9.4 - Prob. 32ECh. 9.4 - Prob. 33ECh. 9.4 - Prob. 34ECh. 9.4 - Perform each indicated operation.
Ch. 9.4 - Prob. 36ECh. 9.4 - Prob. 37ECh. 9.4 - Prob. 38ECh. 9.4 - Prob. 39ECh. 9.4 - Prob. 40ECh. 9.4 - Prob. 41ECh. 9.4 - Prob. 42ECh. 9.4 - Prob. 43ECh. 9.4 - Prob. 44ECh. 9.4 - Prob. 45ECh. 9.4 - Prob. 46ECh. 9.4 - Prob. 47ECh. 9.4 - Prob. 48ECh. 9.4 - Prob. 49ECh. 9.4 - Prob. 50ECh. 9.4 - Prob. 51ECh. 9.4 - Prob. 52ECh. 9.4 - Prob. 53ECh. 9.4 - Prob. 54ECh. 9 - Prob. 1IRCh. 9 - Prob. 2IRCh. 9 - Prob. 3IRCh. 9 - Prob. 4IRCh. 9 - Prob. 5IRCh. 9 - Prob. 6IRCh. 9 - Prob. 7IRCh. 9 - Prob. 8IRCh. 9 - Prob. 9IRCh. 9 - Prob. 10IRCh. 9 - Prob. 11IRCh. 9 - Prob. 12IRCh. 9 - Prob. 13IRCh. 9 - Prob. 14IRCh. 9 - Prob. 15IRCh. 9 - The following circle graph shows the types of milk...Ch. 9 - Prob. 17IRCh. 9 - Prob. 18IRCh. 9 - Prob. 19IRCh. 9 - Prob. 20IRCh. 9 - Prob. 21IRCh. 9 - Prob. 22IRCh. 9 - Prob. 1VCCh. 9 - Prob. 2VCCh. 9 - Fill in each blank with one of the words or...Ch. 9 - Fill in each blank with one of the words or...Ch. 9 - Prob. 5VCCh. 9 - Prob. 6VCCh. 9 - Prob. 7VCCh. 9 - Prob. 8VCCh. 9 - Prob. 9VCCh. 9 - Prob. 10VCCh. 9 - Prob. 11VCCh. 9 - Prob. 12VCCh. 9 - Fill in each blank with one of the words or...Ch. 9 - Fill in each blank with one of the words or...Ch. 9 - The following pictograph shows the number of new...Ch. 9 - Prob. 2RECh. 9 - Prob. 3RECh. 9 - Prob. 4RECh. 9 - Prob. 5RECh. 9 - Prob. 6RECh. 9 - Prob. 7RECh. 9 - Prob. 8RECh. 9 - The following bar graph shows the percent of...Ch. 9 - The following bar graph shows the percent of...Ch. 9 - The following line graph shows the total number of...Ch. 9 - The following line graph shows the total number of...Ch. 9 - Prob. 13RECh. 9 - Prob. 14RECh. 9 - Prob. 15RECh. 9 - Prob. 16RECh. 9 - Prob. 17RECh. 9 - The following histogram shows the hours worked per...Ch. 9 - The following histogram shows the hours worked per...Ch. 9 - The following histogram shows the hours worked per...Ch. 9 - Prob. 21RECh. 9 - Prob. 22RECh. 9 - Prob. 23RECh. 9 - Prob. 24RECh. 9 - Prob. 25RECh. 9 - The following circle graph shows a family’s $4000...Ch. 9 - The following circle graph shows a family’s $4000...Ch. 9 - The following circle graph shows a family’s $4000...Ch. 9 - Prob. 29RECh. 9 - The following circle graph shows a family’s $4000...Ch. 9 - Prob. 31RECh. 9 - Prob. 32RECh. 9 - In 2016, there were approximately 117 buildings...Ch. 9 - In 2016, there were approximately 117 buildings...Ch. 9 - Find the mean, median, and any mode(s) for each...Ch. 9 - Prob. 36RECh. 9 - Prob. 37RECh. 9 - Prob. 38RECh. 9 - Prob. 39RECh. 9 - Prob. 40RECh. 9 - Prob. 41RECh. 9 - Find the range for each data set.
1, 1, 1, 8, 8
Ch. 9 - Find the range for each data set.
70, 75, 95, 60,...Ch. 9 - Find the range for each data set.
80, 87, 97, 99,...Ch. 9 - Prob. 45RECh. 9 - Prob. 46RECh. 9 - Prob. 47RECh. 9 - Prob. 48RECh. 9 - Prob. 49RECh. 9 - Prob. 50RECh. 9 - Prob. 51RECh. 9 - Prob. 52RECh. 9 - Prob. 53RECh. 9 - Draw a tree diagram for each experiment. Then use...Ch. 9 - Draw a tree diagram for each experiment. Then use...Ch. 9 - Draw a tree diagram for each experiment. Then use...Ch. 9 - Prob. 57RECh. 9 - Prob. 58RECh. 9 - Prob. 59RECh. 9 - Prob. 60RECh. 9 - Prob. 61RECh. 9 - Prob. 62RECh. 9 - Prob. 63RECh. 9 - Find the probability of each event.
Rolling an...Ch. 9 - Find the probability of each event.
Rolling a...Ch. 9 - Find the mean, median, and any mode(s) for each...Ch. 9 - Prob. 67RECh. 9 - Prob. 68RECh. 9 - Prob. 69RECh. 9 - Prob. 70RECh. 9 - Prob. 71RECh. 9 - Prob. 72RECh. 9 - Prob. 73RECh. 9 - Prob. 74RECh. 9 - For each graph, calculate parts a.–d. Round the...Ch. 9 - How many bushels of oranges did Orchard 1...Ch. 9 - Which orchard above produced the most...Ch. 9 - Prob. 3GRTCh. 9 - Prob. 4GRTCh. 9 - Prob. 5GRTCh. 9 - Prob. 6GRTCh. 9 - Prob. 7GRTCh. 9 - Prob. 8GRTCh. 9 - Prob. 9GRTCh. 9 - Prob. 10GRTCh. 9 - Prob. 11GRTCh. 9 - For Exercises 11 through 13, use the data sets and...Ch. 9 - For Exercises 11 through 13, use the data sets and...Ch. 9 - MATCHING Exercises 14 through 17 are Matching...Ch. 9 - Prob. 15GRTCh. 9 - Prob. 16GRTCh. 9 - Prob. 17GRTCh. 9 - Prob. 1TCh. 9 - Prob. 2TCh. 9 - Prob. 3TCh. 9 - Prob. 4TCh. 9 - Prob. 5TCh. 9 - The bar graph shows the normal monthly...Ch. 9 - Use the information in the table to draw a bar...Ch. 9 - The following line graph shows the annual...Ch. 9 - The following line graph shows the annual...Ch. 9 - Prob. 10TCh. 9 - Prob. 11TCh. 9 - Prob. 12TCh. 9 - Prob. 13TCh. 9 - Prob. 14TCh. 9 - A professor measures the heights of the students...Ch. 9 - A professor measures the heights of the students...Ch. 9 - The history test scores of 25 students are shown...Ch. 9 - Prob. 18TCh. 9 - Prob. 19TCh. 9 - Prob. 20TCh. 9 - Prob. 21TCh. 9 - Prob. 22TCh. 9 - Prob. 23TCh. 9 - Prob. 24TCh. 9 - Prob. 25TCh. 9 - Prob. 26TCh. 9 - Prob. 27TCh. 9 - Suppose that the numbers 1 to 10 are each written...Ch. 9 - Prob. 29TCh. 9 - Prob. 1CRCh. 9 - Prob. 2CRCh. 9 - Prob. 3CRCh. 9 - Prob. 4CRCh. 9 - Prob. 5CRCh. 9 - Prob. 6CRCh. 9 - The formula for finding the area of a triangle is...Ch. 9 - Find the perimeter of a rectangle with length ...Ch. 9 - Write the ratio of $15 to $10 as a fraction in...Ch. 9 - Prob. 10CRCh. 9 - Prob. 11CRCh. 9 - Prob. 12CRCh. 9 - Prob. 13CRCh. 9 - Prob. 14CRCh. 9 - Prob. 15CRCh. 9 - Prob. 16CRCh. 9 - Prob. 17CRCh. 9 - Prob. 18CRCh. 9 - Prob. 19CRCh. 9 - Prob. 20CRCh. 9 - Prob. 21CRCh. 9 - Prob. 22CRCh. 9 - Prob. 23CRCh. 9 - Prob. 24CRCh. 9 - Prob. 25CRCh. 9 - Prob. 26CRCh. 9 - Prob. 27CRCh. 9 - Prob. 28CRCh. 9 - Prob. 29CRCh. 9 - Prob. 30CRCh. 9 - Prob. 31CRCh. 9 - Prob. 32CRCh. 9 - Prob. 33CRCh. 9 - Prob. 34CRCh. 9 - Prob. 35CRCh. 9 - Prob. 36CRCh. 9 - Prob. 37CRCh. 9 - Prob. 38CRCh. 9 - Prob. 39CRCh. 9 - Prob. 40CRCh. 9 - Prob. 41CRCh. 9 - Prob. 42CRCh. 9 - Prob. 43CRCh. 9 - Prob. 44CRCh. 9 - Prob. 45CRCh. 9 - Prob. 46CRCh. 9 - Prob. 47CRCh. 9 - Prob. 48CRCh. 9 - Prob. 49CRCh. 9 - Prob. 50CR
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