KFind the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 50.8 miles per hour.Speed (miles per hour)Frequency42-4528The mean of the frequency distribution is miles per hour.(Round to the nearest tenth as needed.)46-491250-53654-57358-612nG

From given data we have : Speed Frequency (f) 42-45 28 46-49 12 50-53 6 54-57 3 58-61 2

Answered: The mean of the frequency distribution…

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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The histogram to the right represents the weights (in pounds) of members of a certain high-school math team. What is the class width? What are the approximate lower and upper class limits of the first class? ... What is the class width? The class width is (Simplify your answer.) What are the approximate lower and upper class limits of the first class? The approximate lower class limit is The approximate upper class limit is (Simplify your answers.) Frequency IL 0- 105 125 145 165 185 205 225 245 Weight (lbs) Q G
For numbers 13 to 15. Find the measures of position of the grouped data in Column A and B. Then compare using the statements below. COLUMNA COLUMN B Scores of Grade 10-Firetree Class in their Third Periodical Test Scores of Grade 10-Dao Class in their Third Periodical Test cumulative Lower scores frequency cumulative (1) Lower boundary (LB) scores frequency (ef) frequency (1) frequency boundary (Cf) (LB) 46-50 11 55 45.5 46-50 10 60 45.5 41-45 13 41-45 10 44 40.5 50 40.5 36-40 36-40 12 9 40 35.5 31 35.5 31-35 9 28 30.5 31-35 5 22 30.5 26-30 8 19 25.5 26-30 5 17 25.5 21-25 4 11 20.5 21-25 8 12 20.5 16-20 7 7 15.5 16-20 4 4 15.5 60 55 13. Which of the following statements is TRUE about the value of the Q3? A. Column A is higher than Column B B. Column A is lower than Column B C. Column A and Column B are equal D. None of the above 14. Which of the following statements is TRUE about the value of the D8? A. Column A is higher than Column B B. Column A is lower than Column B C. Column A and…
Refer to the illustration below: 20- 15- 10- 5- 0- What does the height of each rectangle tell us? FREQUENCY COUNT 1-3 3-5 5-7 7-9 9-11 SHOE SIZES Figure 2 Frequency Distribution of Shoe Sizes
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Given the frequency table below, which of the following is the corresponding relative frequency table? |Value | Frequency 1 2 5 3 5 4 2 5 7
Illustration 19.34. A persón buys 100 electric tubes each of two well-known makes, taken at random from the stocks for testing pur- pose. He finds that make A has a mean life of 1300 hrs with SD=82 hrs, and make B has a mean life of 1248 hrs with SD=93 hrs. Dis- cuss the significance of these results.
d. A frequency polygon is to be drawn. What are the coordinates of the plot for the second class? (Round your answer to 1 decimal place.) X = y = 12
Illustration 6.2. Prepare a frequency table for the following re- ported weights (in kg) 40 individuals. 47 50 79 45 46 80 82 72 75 74 57 69 65 52 55 60 64 73 61 60 71 70 68 68 65 55 59 61 60 66 54 70 62 53 65 56 52 72 67 58
For chi-square, what is the difference between observed and expected frequencies? There is no difference: both look at proportions in sample Observed = proportions in sample; expected = proportions in population There is no difference: both look at proportions in population Observed = proportions in population; expected = proportions in sample

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The mean of the frequency distribution is miles per hour [ (Round to the nearest tenth as needed)