13. The U.S. government tracks the number f employees in 22 different mining sectors, ranging from anthracite to uranium. The following histogram displays the number of employees in each of the 22 sectors. Histogram of Paid Employees 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0. 1 8. 6. Frequency What percentage of mining sectors has 7,500 or fewer paid employees? (A) 73% (B) 59% (C) 27% (D) 16% (E) 6% Paid Employees

13. The U.S. government tracks the number f employees in 22 different mining sectors, ranging from anthracite to uranium. The following histogram displays the number of employees in each of the 22 sectors. Histogram of Paid Employees 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0. 1 8. 6. Frequency What percentage of mining sectors has 7,500 or fewer paid employees? (A) 73% (B) 59% (C) 27% (D) 16% (E) 6% Paid Employees

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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17
1. The number library books read in one semester by a group of 30 second graders is given in the table at the right. Create a reasonable frequency table for this data set with exactly 5 classes. Include a relative frequency column in the table. 39 52 59 45 48 48 56 78 63 58 64 43 20 72 39 59 67 66 55 68 27 63 69 67 60 57 48 36 49 56 2. Construct an ordered stem-and-leaf plot for the data given above in #8. Then, describe the shape of the distribution of the data set (either skewed left or skewed right or symmetric). (HINT: to keep appropriate spacing, choose Times New Roman font format for cells used to display the plot and begin each entry with an apostrophe to make the values act as text versus a single number.)
3. Examine the two-way frequency table below. Score: 90-100 Score: 70-89 Score: 0-69 Math Test 20 40 17 Science Test 15 35 Which percentage of students took the math test and received a grade of 90 or above? 29.85% O 57.14% O 28.69% O 16.39%
Consider the following frequency table representing the distribution of cost of lunch (in dollars). Step 2 of 2: Determine the cumulative frequency for the fourth class. Answer Cost of Lunch (in Dollars) Class 6.1-6.9 7.0-7.8 7.9-8.7 8.8-9.6 9.7-10.5 Frequency 10 15 3 3 14
During one shift, the express lane clerk recorded how many times customers violated the "10 items or less" rule for his lane. In particular, he recorded how many items over the limit each violator placed on the conveyor belt. This data is summarized in the histogram below. NOTE: The last class actually represents "7 or more items," not just 7 items. Frequency SHIFT 14- 12 10- 8- 6 CAPS 0.5 1.5 2.5 3.5 4.5 5.5 5.5 6.5 7.5 #items over 10 Q What is the frequency of times the limit was exceeded by at least 2 items? 38°F Clear 4 ans 2H TAB 61 Check Answer ESC ! F1 ! Q A Z BEBEEEE F2 X 2 W S F3 # * 3 Q Search X E F4 LA 4 F5 с % R 5 LLI F6 T V 6 HCO F7 1111 4+ 7 Y F8 G H * 00 с F9 J B N
Here are some ratings of the K-12 education system, on a scale from 1 to 10. 8. 5 8 7 7 4 8. 7 1 10 4 7 7 7 4 6 8 7 10 5 8. 7 10 10 7 7 0. Find the minimum and maximum of the data. 1. Make a frequency table of the data, with single digit intervals. 2. Create a histogram of the data from the frequency table.
Below is a frequency distribution for the estimated miles per gallon (MPG) for 298 different models Japanese-made cars. Japanese-Made Cars Frequency 14 42 100 92 24 18 2 2 2 2 MPG 10 - 13 14 - 17 18 - 21 22 - 25 26 - 29 30-33 34 - 37 38 - 41 42-45 46 - 49 (a) Identify the following class midpoints (enter as a comma-separated list) class boundaries (enter as a comma-separated list)
2. Draw a frequency histogram and cumulative frequency polygon for the following distributions: b. The systolic blood pressure (at rest) of the 700 female staff members at Polytechnic University: Systolic Blood Pressure Frequency 101 110 68 111 120 187 121 130 131 140 209 88 141 150 76 Over 150 72
7. Consider the frequency distribution. Draw a Frequency Bar Graph. Be sure to label both axes and include a title. Tree Type Frequency Ash 23 Bradford Pear 16 Maple Oak 20 14 8 Birch
The table below shows the frequency distribution for the ages of women who became mothers during one year. a. Obtain a relative-frequency histogram of these age data. Choose the correct graph below. O A. Age (yrs) 10-under 15 Frequency 50,503 1,000,037 1,020,076 800,015 751,352 453,944 95,620 54,864 0.3- 15-under 20 20-under 25 12.5 22.5 32.5 42.5 25-under30 30-under 35 В. 35-under 40 0.37 40-under 45 45-under 50 12.5 22.5 32.5 42.5 Oc. 12.5 22.5 32.5 42.5 b. Based on your histogram, do you think that the ages of women who became mothers that year are approximately normally distributed? Yes No Rel. Freq. Rel. Freq. Rel. Freq.
20. Find mean, median, mode and midrange
Estimate the mean, median and modal daily production of transistors. Which of these averages best represents the data.