1) Calculate the five-number summary of the given data. Use the approximation method:
6,9,5,3,7,13,24,18,8,14,16,3,18,8
Enter answers in ascending order.
2) Consider the following data:
10,4,11,15,2,10,5,7
-Calculate the value of the sample variance, sample standard deviation, and the range. Round your answers to one decimal place.
3) Suppose that IQ scores have a bell shaped distribution with a mean of 104 and a standard deviation of 14. Using the empirical rule, what percentage of IQ scores are at least 90? Please do not round your answer.
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