# 1. Bob gets test grades of 86, 92, and 60. He gets an 90 on his final exam.

October 22, 2018

1. Bob gets test grades of 86, 92, and 60. He gets an 90 on his final exam. Find the weighted mean if each test for 20%, and the final exam counts for 40% of the final grade. Show work.2.Calculated the correlation coefficient and discuss the relationship between age and male shoe size.Steven – age 30 – shoe size 12Paul – age 15 – shoes size 14Ethan – age 70 – shoe size 7Carter – age 16 – shoe size 6Pete – age 40 – shoe size 7John – age 40 – shoe size 134. a vendor is trying to decide whether to sell frozen yogurt or ice cram at the State Fail. she take ten random teaspoon samples of each and measures their melting time.find the five-number summary for the frozen yogurt data.1. 98 seconds melting time2. 115 seconds melting time3. 103 seconds melting time4. 77 seconds melting time5. 86 seconds melting time6. 128 seconds melting time7. 143 seconds melting time8. 119 seconds melting time9. 87 seconds melting time10. 155 seconds melting timeFind the 5-number summary for the ice cream data.1. 83 seconds melting time2. 75 seconds melting time3. 89 seconds melting time4. 52 seconds melting time5. 65 seconds melting time6. 65 seconds melting time7. 57 seconds melting time8. 111 seconds melting time9. 8 seconds melting time10. 113 seconds melting timeBased on the longest melting time, which should the vendor sell at the fair? show work.5. Find the standard deviation and variance from the data below. Describe your results.ages of a random sample of subscribers to a magazine.23 35 43 47 4859 62 62 66 6872 73 74 81 8181 82 83 89 926. Find the mean, median and mode of the following data set:20, 18, 19, 18, 19, 21, 25, 22, 18, 21Laurie WoodardI am having trouble understanding statistics.

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