write down your last and first name as well as student\'s ID# on the title page
ID: 3064332 • Letter: W
Question
write down your last and first name as well as student's ID# on the title page of exam. Give complete answer to the problems in a space provided. Write all of your solutions clearly. Submit diagrams on problems related to normal distribution. You may write anywhere on these exam pages. You may also use the accompanying exam book for scrap paper. Put your name on the book and hand it in with your test. Each problem holds a score. Total number of score points is 100. Good luck! 1. For the following series of observations find the mean, median, mode, and midrange. 10, 3, 2, 8, 5, 10, 6, 12, 19, 10, 25,7. (6 points)Explanation / Answer
1. 10, 3, 2, 8, 5, 10, 6, 12, 19, 10, 25, 7.
Mean = (10 + 3 + 2 + 8 + 5 + 10 + 6 + 12 + 19 + 10 + 25 + 7) / 12 = 9.75
Sorting the data we have
2, 3, 5, 6, 7, 8, 10, 10, 10, 12, 19, 25
Median = Average of 6th and 7th value
= (8 + 10) / 2 = 9
Mode = Most repeating value = 10
Midrange = (Minimum value + Maximum value) / 2 = (2 + 25) / 2 = 13.5.
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