Extra+Credit+Worksheet+1

Extra+Credit+Worksheet+1 - Stat 100 Worksheet #1 Name _ 1)...

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Stat 100 Worksheet #1 Name _________________________________________ 1) The number of visitors to the local library for 25 randomly selected time periods is shown below. 15 53 48 19 38 86 63 98 79 38 62 89 67 39 26 28 35 54 88 76 31 47 53 41 68 a) Construct a stem and leaf plot for this data. b) Calculate the mean and the standard deviation. c) Find the median, Q1, Q3, LF and UF and determine if there are any outliers. d) Draw a boxplot. e) What length of years of service corresponds to the 60 th percentile?
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2) In a certain high-risk group, the chances of a person having suffered a heart attack are 55%. If 6 people are chosen, find the following probabilities: a) at least 1 of them will have had a heart attack b) all of them will have had a heart attack 3) During a sale at a men’s store, 16 white sweaters, 3 red sweaters, 9 blue sweaters, and 7 yellow sweaters were purchased. If a customer is selected at random, find the probability that he bought: a) A blue sweater b) A yellow or a white sweater c) A sweater that was not white d) Write a probability distribution for this example.
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Extra+Credit+Worksheet+1 - Stat 100 Worksheet #1 Name _ 1)...

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