Q6A set of customer data about their monthly expenses on internet services has been collected,as in the following table 1.233525332030answer.203020403040Table 130503427354023Toaln2837a) Calculate standard deviation of the data setb) Draw an appropriate histogram to represent the data set.c)In your opinion, do you think the data set follows a symmetric distribution? Justify your

Data set: x x2 23 529 25 625 20 400 20 400 20 400 30 900 30 900 34 1156 35…

Answered: 06 A set of customer data about their…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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b) Find the mean and the standard deviation of the times in the following table. Because the table contains all the winning times for this race (up to year 2012), the data set is a population. Olympic Women's 400-Meter Dash Results, in Seconds, 1969-2012 52.0 51.08 49.29 48.88 48.83 48.65 48.83 48.25 49.11 49.41 49.62 49.55
Fifteen randomly selected college students were asked to state the number of hours they slept the night before. The resulting data are: 6 16 7 8 7 796 3 11 9 15 4 7 9 a) Find the mean. b) Find the median. c) Find the standard deviation. d) According to Chebysev's Theorem, at least 75% of the times will fall between what two amounts? Is the theorem accurate for this set of data? Why of Why not? e) Are any of the reported hours "unusually" high? Are any of the reported hours unusually low?
Which of the following data sets has the smallest standard deviation? a. 1, 2, 3, 4, 5 b. 100, 100, 100, 100, 100 c. 100, 101, 102, 103, 104 d. 2, 4, 6, 8, 10
C. The following table summarizes the grade point averages (GPAS) of graduate students in a statistics class. Approximate the mean GPA of the class. GPA Frequency 3.0-under 3.2 3.2-under 3.4 3.4-under 3.6 6 3.6-under 3.8 16 3.8-4.0
A group of friends get together every Sunday for a little pick-up hockey. The age of the 20 regulars is shown below. 20 28 26 46 28 27 41 38 21 38 46 44 50 33 35 37 24 43 25 37 a.) Find the standard deviation, mean, median, and mode for the distribution. b.) Which measure best describes these data? Explain.
Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. a. Find the mean, median, and mode of this data. b. Explain which measure of central tendency will best predict how many miles Gina will drive in the sixth year. a. mean= 12,700; median= 13,156; no mode; the mean is the best choice because it is representative of the entire data set. b. mean= 13,156; median= 12,700; mode= 3,628; the median is the best choice because it is not skewed by the high outlier. c. mean= 13,156; median= 12,700; no mode; the mean is the best choice because it is representative of the entire data set. d. mean= 13,156; median= 12,700; no mode; the median is the best choice because it is not skewed by the high outlier.
Which is the largest with regard to the following data set: the range or the standard deviation? 11 11 12 12 12 12 13 15 17 22 22 22 Standard Deviation Range
Using PivotTables, find the mean and standard deviation of sales by region in the data provided. LOADING... Click the icon to view the data. Question content area bottom Part 1 Complete the table below. (Type integers or decimals rounded to two decimal places as needed.) Average of Amount StdDev of Amount East enter your response here enter your response here North enter your response here enter your response here South enter your response here enter your response here West enter your response here enter your response here Grand Total enter your response here enter your response here
Consider the following data set. You may assume that the mean of this data set is x¯ = 7. 8 10 3 5 7 5 11 a) Find the range of the data set. b) Find the standard deviation of the data set. c) How many of the seven data points lie within one standard deviation of the mean?
Rank the data sets described in order of the least spread out (1) to the most spread out (5) based on the standard deviation. Set A: o = 3.5 [ Select ] Set B: o = 8.02 [ Select ] Set C: o = 1.4 Select ] Set D: o = 5.7 Select ] Set F: o = 0.58 [ Select ]
5.) Find the mean, median, range, variance and standard deviation of the data set below. The data represent the fixed monthly costs for Sam's Linen Service. Monthly charges Monthly cost ($) Bank charges 482 Cleaning 2208 Food 1750 Computer expenses 2471 Lease payments 2656 Grounds fees 1475 Postage 2117 Uniforms 2600 Delivery fuel 955
C8. Individuals with higher levels of education tend to delay parenting, having children at an older age in comparison with individuals with lower levels of education. We examine this relationship based on GSS 2018 data. In the following table, the mean, standard deviation, and variance for respondent's age when first child was born (AGEKDBRN) are reported for five categories (DEGREE). a. Identify the level of measurement for DEGREE and AGEKDBRN. b. Describe the relationship between respondent degree and age when first child was born. High School Some Less Than High School Bachelor's Graduate College Degree Degree Mean 21.33 23.08 24.83 27.44 28.59 5.055 5.498 4.581 5.314 5.446 Standard deviation Variance 25.556 30.232 20.984 28.234 29.654

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