The distance travelled (in kilometres) by a courier service motorcycle on 40 trips were recorded by the driver32222419212720171722261813233010131834161823151928252520171510111213140908070605From the frequency distribution table, what is the value of bowley's coefficient of skewness?OA3OB. +3OC0.048OD.0.059

Skewness is used to measure whether the data is symmetrical or not. It can be calculated using…

Answered: The distance travelled (in kilometres)…

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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Twenty batteries were tested to see how many hours they would last. The following grouped frequency distribution illustrates the results. Class Class Frequency Midpoint f Rel. Rel. Cummulative Cumm. Limits Boundaries Freq 1/20 = 0.05 Freq % m Freq. 1/20 = 0.05 Freq % 1- 3 0.50 – 3.5 1 4- 6 3.5 - 6.5 3 5 3/20 = 0.15 15 4/20 = 0.20 20 7-9 6.5 – 9.5 4 8 4/20 = 0.20 20 8/20 = 0.40 40 10 12 13 15 9.5 12.5 11 5/20 = 0.25 25 13/20 = 0.65 65 12.5 – 15.5 7 14 7/20 = 0.35 35 20/20 = 1.00 100 Totals 20 1.00 100 Using the data from the above grouped frequency distribution, construct a grouped frequency ogive.
Match each scatterplot shown below with the best desciption of its correlation. O 0 00 O O goog 800 000000 98 O 0 O O 00 O ⁰00 Select an answer Select an answer Negative correlation No correlation Co Positive Correlation O 8 0 O 6 Select an answer Select an answer
Research department of the Municipal hospital in Prampram collected the mass (kg) of patients :it visited the health facility on March, 2018. Below are the masses (kg) of 40 patients who visited •.r hospital for analysis: 55 70 57 73 55 59 64 72 60 48 58 54 69 51 63 78 75 64 65 57 71 78 76 62 49 66 62 76 61 63 63 76 52 76 71 61 53 56 67 71 a) Construct a frequency table for the data using class width of 5. b) Calculate the mean, median and the standard deviation of the mass of the distributior c) Construct the cumulative graph.
A graduate-level computer science course only gives the grades of A, B, or C. The department has determined that there should be 40% A's given, 40% B's given and 20% C's given as final grades for the course. For the spring 2021 semester, 200 students took the course and 100 students received A's, 50 students received B's and 50 students received C's, so those are my observed frequencies. We want to do a Chi-square Multinomial Goodness of Fit test to see if our grading guidelines match up with what is actually happening. What is the expected frequency for the grade of B category? Round your answer to the tenths position.
a. Total frequency = 82 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O b. Total frequency = 82 Observations on the largest frequency: 87.4, 87.5, 87.6, 87.7, 87.8, 87.9 O. Total frequency cannot be determined by the present diagram Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 d. Total frequency = 18 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9
Dr.Blume has trained observers to use frequency recording to record the behavior of 12 schizophrenic clients. According to the analysis of the data κ = 0 . 47, do you think the observers are sufficiently trained to allow Dr. Blume to proceed with the research?
The following histograms represent the heights, measured to the nearest cm, of 14 women and 13 men. Women's heights 3- 2- 1 150 155 160 165 170 175 180 185 190 Height (cm) Men's heights 2 1 0+ 150 155 160 165 170 175 180 185 190 Height (cm) Choose the two options from the list below that are true. Select one or more: Each of the intervals with the lowest frequency in the women's heights dataset contains a smaller number of data values than one of the intervals with the lowest frequency in the men's heights dataset. The histograms are divided into six intervals for the women's heights dataset and eight for the men's heights dataset. The histogram of the women's heights dataset has a greater number of intervals containing two values than the histogram of the men's heights dataset. Both histograms are right-skewed. O The range of the women's heights dataset is greater than the range of the men's heights dataset. Aouan ba Aouan ba
Refer to the accompanying data set and use the 30 screw lengths to construct a frequency distribution. Begin with a lower class limit of 2.970 in, and use a class width of 0.010 in The screws were labeled as having a length of 3 in Click on icon to view the data -X Data table Screw Lengths (inches) 2.977 3,002 2.991 2.979 2.982 2.991 3.004 2978 3.002 3.009 3.005 2.997 2.992 2.983 2.991 3.001 3.006 2.987 2.994 3.014 2.998 3.011 3.005 3.009 2.986 2.981 3.002 2.986 3.003 2.993 n
Compute this measure of central tendency and explain what this means in everyday language. The frequency table is given as: X Frequency proportion percent 0 7 0.35 35% 1 4 0.20 20% 2 3 0.15 15% 3 2 0.10 10% 5 1 0.05 5% 7 1 0.05 5% 8 1 0.05 5% 9 1 0.05 5% Total 20 1 100%
Exhibit 1.1 18 13 10 16 14 13 17 15 13 11 14 14 11 10 12 12 11 13 15 9 12 13 16 8 15 Using the numbers in Exhibit 1.1, determine the inter quartile range? And why?
2-8. You are given the following data: 10 6 4 9 5 5 5 7 2 5 5 5 4 5 7 7 8 8 4 7 5 5 5 7 8 7 7 5 4 4 7 4 7 7 6. 8 6. 5 7 6 4 4 d. Develop a relative frequency histogram. e. Compare the two histograms. Why do they look alike? 499 448 n4 6 673
A random sample of people were selected in order to compare the hight between vegetarians and non-vegetarians. The relative-frequency histograms below show the height distribution of the fifteen vegetarian persons in the group and and the remaining people who are not vegetarian. What can be correctly concluded from these graphs? Vegetarian Not a Vegetarian 0.4 0.4 0.3 0.3 02 0.2 0.1 0.1 0.0 0.0 140 150 160 170 180 190 200 140 150 160 170 180 190 200 Height (cm) Height (cm) Select one or more: O a. being vegetarian causes people to be shorter on average O b. more than 30% of vegetarians in this study are between 160cm and 165cm tall Oc. the range of vegetarians heights is larger than the range of non-vegetarians heights O d. more than 45% of non-vegetarians in this study are more than 170cm tall Relative Frequency of Height (cm) Relative Frequency of Height (cm)

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