Evaluate the coefficient of variation and coefficient of skewness for the data given below: MARKS 10 35 40 60 90 Note: Choose the value very close to your solution. Coefficient of variation is 01. 55.36 02. 63.65 Оз. 69.67 04. 50.85

Data Management - Organization of Data for analysis

The accompanying table lists 18 of the largest companies in the world ranked by their market capitalization (in billions of dollars). A company's market capitalization is defined as the number of its shares multiples by the price per share. Complete parts a throuah d below. a. Determine the coefficient of variation. Data Table coefficient of variation = (Round to two decimal places as needed.) b. Calculate the z-score for a company with a market capitalization of $250 billion. Company Market Cap ($ billions) Z-score = (Round to two decimal places as needed.) Wells Fargo 274.4 Nestle 229.5 c. Test to determine if the empirical rule holds true by determining the percentage of observations that fall within tone standard deviation from the mean. ExxonMobil 343.2 What is the percentage of observations that fall within tone standard deviation from the mean? ATandT 249.3 JPMorgan Chase Alphabet 306.6 % of the observations fall within t one standard deviation from the mean. 579.5 (Round to the…

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Which equation represents the data in the table? 3. 4 100 25 6.25 1.5625 O A " y = 100() O B. y= 400(금)" %3D O Cy =(100)" O D. y =(400)"

Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored 75, 83, and 81 on her three in-class tests and also has a homework average of 88. Her professor calculates the class grade by finding the mean of five grades: three in-class tests, the homework average and the final exam. What is the minimum score Joselyn must earn on the final exam to have a class grade (mean) of 80? A. 67 B. 95 C. 70 D. 73

A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 5 children and measures their height and head circumference. The data are summarized below. Complete parts (a) through (f) below. Height (inches), x Head Circumference (inches), y 27.75 27.5 25.5 26 270 17.6 17.5 17.1 17.3 17.5 (a) Treating height as the explanatory variable, x, use technology to determine the estimates of B and B4 Po z bo = (Round to four decimal places as needed.) B, xb, = (Round to four decimal places as needed.)

If the data below were represented with a stem-and-leaf plot, a stem of 2 would have how many leaves? 17, 22, 53, 74, 42, 62, 93, 12, 67, 29, 50 O A. 5 О в. 2 O C. 4 D. 3

Here are the fuel efficiencies (in mpg) of 15 new cars. 49, 35, 17, 21, 27, 23, 45, 50, 39, 51, 41, 47, 25, 14, 29 What is the percentage of these cars with a fuel efficiency less than 40 mpg?

how do you find the coefficient of determination with only data points?