Statistical Reasoning for Everyday Life (5th Edition)
5th Edition
ISBN: 9780134494043
Author: Jeff Bennett, William L. Briggs, Mario F. Triola
Publisher: PEARSON
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Chapter 6.3, Problem 7E
To determine
Determine whether the statement makes sense or not and explain it.
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20 km, because
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Worksheet 10
Jesse runs a small business selling and delivering mealie meal to the spaza shops.
He charges a fixed rate of R80, 00 for delivery and then R15, 50 for each packet of
mealle meal he delivers. The table below helps him to calculate what to charge
his customers.
10
20
30
40
50
Packets of mealie
meal (m)
Total costs in Rands
80
235
390
545
700
855
(c)
10.1.
Define the following terms:
10.1.1. Independent Variables
10.1.2. Dependent Variables
10.2.
10.3.
10.4.
10.5.
Determine the independent and dependent variables.
Are the variables in this scenario discrete or continuous values? Explain
What shape do you expect the graph to be? Why?
Draw a graph on the graph provided to represent the information in the
table above.
TOTAL COST OF PACKETS OF MEALIE MEAL
900
800
700
600
COST (R)
500
400
300
200
100
0
10
20
30
40
60
NUMBER OF PACKETS OF MEALIE MEAL
Let X be a random variable with support SX = {−3, 0.5, 3, −2.5, 3.5}. Part ofits probability mass function (PMF) is given bypX(−3) = 0.15, pX(−2.5) = 0.3, pX(3) = 0.2, pX(3.5) = 0.15.(a) Find pX(0.5).(b) Find the cumulative distribution function (CDF), FX(x), of X.1(c) Sketch the graph of FX(x).
Chapter 6 Solutions
Statistical Reasoning for Everyday Life (5th Edition)
Ch. 6.1 - Coin Tossing. Suppose you toss a coin 100 times....Ch. 6.1 - Statistical Significance. What do we mean when we...Ch. 6.1 - Prob. 3ECh. 6.1 - Quantifying Significance. What does it mean to say...Ch. 6.1 - Does It Make Sense? For Exercises 58, determine...Ch. 6.1 - Does It Make Sense? For Exercises 58, determine...Ch. 6.1 - Does It Make Sense? For Exercises 58, determine...Ch. 6.1 - Does It Make Sense? For Exercises 58, determine...Ch. 6.1 - Subjective Significance. For each event in...Ch. 6.1 - Subjective Significance. For each event in...
Ch. 6.1 - Subjective Significance. For each event in...Ch. 6.1 - Subjective Significance. For each event in...Ch. 6.1 - Subjective Significance. For each event in...Ch. 6.1 - Subjective Significance. For each event in...Ch. 6.1 - Subjective Significance. For each event in...Ch. 6.1 - Subjective Significance. For each event in...Ch. 6.1 - Prob. 17ECh. 6.1 - Carpal Tunnel Syndrome Treatments. An experiment...Ch. 6.1 - Prob. 19ECh. 6.1 - Prob. 20ECh. 6.1 - Human Body Temperature. In a study by researchers...Ch. 6.1 - Seat Belts and Children. In a study of children...Ch. 6.1 - Prob. 23ECh. 6.1 - Subjective Significance. For each event in...Ch. 6.2 - Outcomes and Events. Distinguish between an...Ch. 6.2 - Notation. What does it mean when we write P(A)?...Ch. 6.2 - Probability Types. Briefly describe the...Ch. 6.2 - Prob. 4ECh. 6.2 - Prob. 5ECh. 6.2 - Does It Make Sense? For Exercises 58, determine...Ch. 6.2 - Prob. 7ECh. 6.2 - Does It Make Sense? For Exercises 58, determine...Ch. 6.2 - Counting Outcomes. How many different three-child...Ch. 6.2 - Prob. 10ECh. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 1120, use...Ch. 6.2 - Days of the Week. What is the probability of...Ch. 6.2 - Days of the Week. What is the probability of...Ch. 6.2 - Complementary Events. Exercises 2330 involve...Ch. 6.2 - Complementary Events. Exercises 2330 involve...Ch. 6.2 - Complementary Events. Exercises 2330 involve...Ch. 6.2 - Complementary Events. Exercises 2330 involve...Ch. 6.2 - Complementary Events. Exercises 2330 involve...Ch. 6.2 - Complementary Events. Exercises 2330 involve...Ch. 6.2 - Prob. 29ECh. 6.2 - Prob. 30ECh. 6.2 - Theoretical Probabilities. For Exercises 3134, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 3134, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 3134, use...Ch. 6.2 - Theoretical Probabilities. For Exercises 3134, use...Ch. 6.2 - Relative Frequency Probabilities. Use the relative...Ch. 6.2 - Relative Frequency Probabilities. Use the relative...Ch. 6.2 - Relative Frequency Probabilities. Use the relative...Ch. 6.2 - Prob. 38ECh. 6.2 - Probability Distributions. In Exercises 39 and 40,...Ch. 6.2 - Probability Distributions. In Exercises 39 and 40,...Ch. 6.3 - Law of Large Numbers. What is the law of large...Ch. 6.3 - Understanding the Law of Large Numbers. In terms...Ch. 6.3 - Expected Value. What is an expected value, and how...Ch. 6.3 - Gamblers Fallacy. What is the gamblers fallacy?...Ch. 6.3 - Prob. 5ECh. 6.3 - Does It Make Sense? For Exercises 58, determine...Ch. 6.3 - Prob. 7ECh. 6.3 - Does It Make Sense? For Exercises 58, determine...Ch. 6.3 - Gender Selection. In analyzing genders of...Ch. 6.3 - Speedy Driver. A person who has a habit of driving...Ch. 6.3 - Should You Play? Suppose you are offered this...Ch. 6.3 - Kentuckys Pick 4 Lottery. If you bet 1 in...Ch. 6.3 - Expected Value for Life Insurance. There is a...Ch. 6.3 - Expected Value for Life Insurance There is a...Ch. 6.3 - Expected Waiting Time. You arrive at a bus stop...Ch. 6.3 - Expected Value in Roulette. As shown in Figure...Ch. 6.3 - Expected Value in Casino Dice. When you give a...Ch. 6.3 - New Jersey Pick 4. In New Jerseys Pick 4 lottery,...Ch. 6.3 - Extra Points in Football. Football teams have the...Ch. 6.3 - Prob. 20ECh. 6.3 - Psychology of Expected Values. In 1953, a French...Ch. 6.3 - Behind in Coin Tossing: Can You Catch Up? Suppose...Ch. 6.4 - Risk and Travel. What is travel risk? Give an...Ch. 6.4 - Prob. 2ECh. 6.4 - Prob. 3ECh. 6.4 - Prob. 4ECh. 6.4 - Prob. 5ECh. 6.4 - Does It Make Sense? For Exercises 58, determine...Ch. 6.4 - Prob. 7ECh. 6.4 - Prob. 8ECh. 6.4 - Prob. 9ECh. 6.4 - Commercial Aviation. For Exercises 912, use the...Ch. 6.4 - Commercial Aviation. For Exercises 912, use the...Ch. 6.4 - Prob. 12ECh. 6.4 - Births/Deaths. For Exercises 1316, use the data in...Ch. 6.4 - Births/Deaths. For Exercises 1316, use the data in...Ch. 6.4 - Births/Deaths. For Exercises 1316, use the data in...Ch. 6.4 - Births/Deaths. For Exercises 1316, use the data in...Ch. 6.4 - Vital Statistics. For Exercises 1720, use the data...Ch. 6.4 - Vital Statistics. For Exercises 1720, use the data...Ch. 6.4 - Prob. 19ECh. 6.4 - Prob. 20ECh. 6.4 - Prob. 21ECh. 6.4 - Prob. 22ECh. 6.4 - Prob. 23ECh. 6.4 - Prob. 24ECh. 6.4 - Prob. 25ECh. 6.4 - Prob. 26ECh. 6.4 - Prob. 27ECh. 6.4 - Prob. 28ECh. 6.4 - Life in This Century. Example 5 assumed that the...Ch. 6.4 - Prob. 30ECh. 6.5 - Independence. Let A denote the event of getting a...Ch. 6.5 - Independence. A geneticist is working with 3 green...Ch. 6.5 - Prob. 3ECh. 6.5 - Complementary Events. Let A be the event of...Ch. 6.5 - Prob. 5ECh. 6.5 - Does It Make Sense? For Exercises 58, determine...Ch. 6.5 - Does It Make Sense? For Exercises 58, determine...Ch. 6.5 - Does It Make Sense? For Exercises 58, determine...Ch. 6.5 - Births. Assume that boys and girls are equally...Ch. 6.5 - Births. A couple plans to have four children. Find...Ch. 6.5 - Password. A programmer is instructed to create a...Ch. 6.5 - Wearing Hunter Orange. A study of hunting injuries...Ch. 6.5 - Songs. The 50 songs on a smartphone consist of 15...Ch. 6.5 - Polls. A pollster plans to call adults. She has a...Ch. 6.5 - Probability and Court Decisions. In Exercises...Ch. 6.5 - Probability and Court Decisions. In Exercises...Ch. 6.5 - Probability and Court Decisions. In Exercises...Ch. 6.5 - Probability and Court Decisions. In Exercises...Ch. 6.5 - Probability and Court Decisions. In Exercises...Ch. 6.5 - Probability and Court Decisions. In Exercises...Ch. 6.5 - Prob. 21ECh. 6.5 - Pedestrian Deaths. For Exercises 2126, use the...Ch. 6.5 - Prob. 23ECh. 6.5 - Pedestrian Deaths. For Exercises 2126, use the...Ch. 6.5 - Prob. 25ECh. 6.5 - Pedestrian Deaths. For Exercises 2126, use the...Ch. 6.5 - Clinical Trial. In a clinical trial of an allergy...Ch. 6.5 - Prob. 28ECh. 6.5 - Prob. 29ECh. 6.5 - Survey Refusals. Refer to the data in Exercise 29....Ch. 6.5 - Drug Testing. A 1-Panel-THC test for marijuana use...Ch. 6.5 - BINGO. The game of BINGO involves drawing numbered...Ch. 6 - For Exercises 17, use the data in the following...Ch. 6 - For Exercises 17, use the data in the following...Ch. 6 - For Exercises 17, use the data in the following...Ch. 6 - For Exercises 17, use the data in the following...Ch. 6 - For Exercises 17, use the data in the following...Ch. 6 - For Exercises 17, use the data in the following...Ch. 6 - For Exercises 17, use the data in the following...Ch. 6 - The Binary Computer Company manufactures computer...Ch. 6 - For a recent year, the fatality rate from motor...Ch. 6 - A Las Vegas handicapper can correctly predict the...Ch. 6 - For the handicapper in Exercise 1, find the...Ch. 6 - In a clinical trial of the effectiveness of a...Ch. 6 - If P(A) = 0.65, what is the value of P(not A)?Ch. 6 - In Exercises 610, use the following results. The...Ch. 6 - In Exercises 610, use the following results. The...Ch. 6 - Prob. 8CQCh. 6 - In Exercises 610, use the following results. The...Ch. 6 - In Exercises 610, use the following results. The...
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