# Question 6 of 20 10 10 points the following data

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Question 6 of 20 1.0/ 1.0 Points The following data represents the grades in a statistics course. Below is the frequency distribution and histogram.
Class Limit Class Midpoint Frequency Relative Frequency 40 – 49.9 45 2 0.08 50 – 59.9 55 1 0.04 60 – 69.9 65 7 0.28 70 – 79.9 75 6 0.24 80 – 89.9 85 7 0.28 90 – 99.9 95 2 0.04 How many students were in the class?
75 D. 7 E. 95 Answer Key: A Feedback: 2+1+7+6+7+2 Question 7 of 20 1.0/ 1.0 Points A histogram that is positively skewed is also called
Part 4 of 8 - Measures of Central Tendency Questions 3.0/ 4.0 Points Question 8 of 20 1.0/ 1.0 Points The following histogram shows the number of enrollment in 40 community colleges. The shape of this distribution is:
C. right skewed (skewed positive) Answer Key: C Question 9 of 20 0.0/ 1.0 Points A sample of 8 cats found the following weights in kg. What is the median weight? See Attached Excel for Data. cat weight data.xlsx 8 KB A. 3.7125 kg B. 3.7 kg C. 3.9 kg
D. 3.6875 kg Answer Key: B Feedback: use =MEDIAN function in Excel Question 10 of 20 1.0/ 1.0 Points boat length data.xlsx 8 KB The following data show the lengths of boats moored in a marina. The data are ordered from smallest to largest. See Attached Excel for Data. Calculate the mean. Round your answer to one decimal place.
Feedback: =AVERAGE function in Excel Question 11 of 20 1.0/ 1.0 Points A sample of 8 cats found the following weights in kg. What is the mean weight? Do not round your answer. See Attached Excel for the Data. cat weight data.xlsx 8 KB
Feedback: use =AVERAGE function in Excel Part 5 of 8 - Measures of the Location of Data Questions 3.0/ 3.0 Points Question 12 of 20 1.0/ 1.0 Points age data.xlsx 8 KB Listed are 29 ages for Academy Award-winning best actors in order from smallest to largest.
See Attached Excel for Data. Find the 40th percentile. Round one decimal place. 37.8 years Hint: Use =PERCENTILE.INC function in Excel or use textbook formula (n+1)p/100.