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A video movie store owner finds that 30% of the customers entering the store ask an assistant for help and that 20% of the customers make a purchase before leaving. It is also found that 15% of all customers both ask for assistance and make a purchase. What is the probability that a customer does at least one of these two things?
Student received the following grades last semester. Find the student's semester grade point average. Course Credits Grade/Points Statistics 4 A / 4.0.
A consumer organization wants to know if there is a difference in the price of a particular toy at three different types of stores. The price of the toy was checked in a sample of five discount toy stores, five variety stores, and five department ..
For the variables, HOME, ARREST, TENURE and SIBS, identify the correct measure of dispersion and explain why it is appropriate. Locate the values for the measure on the tables and report them for each variable
question abc airlines operates 50 seat planes between albany and boston. for tomorrows flight it has accepted 62
q1. when do americans decide what to make for dinner? an outline survey indicated that 74 of americans decided either
A random sample of 100 oranges is gathered and the mean diameter obtained was 5.12. If another sample of 100 is taken, what is the possibility that its sample mean will be greater than 5.12 inches.
Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades? Explain.
lance a long time proprietor of a mens clothing store in peru illinois has noticed that in the past few years that he
a game consists of flipping a coin repeatedly until two heads or two tails are obtained. assume that flips are
in the standard normal distribution what is the probability that a value is greater than
seven popular brands of tea are to be used in a blind taste study for consumer recognition. if four distinct brands are
What is the mean and standard deviation of the sampling distribution of x-bar assuming that mean =20 and standard deviation equals the square root of 20?
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