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The probability that someone made a purchase at a store is 0.36. You randomly select 15 people who went to the store. The random variable x represents the number of people who made a purchase.
a. Find the probability that exactly 2 people made a purchase.
b. Find the probability that less than 3 people made a purchase.
A marketing research firm wishes to compare the prices charged by two supermarket chains-Miller's and Albert's. The research firm, using a standardized one-week shopping plan (grocery list), makes identical purchases at 10 of each chain's stores.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
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police records show that there has been an average of 2 accidents per week on a new freeway. calculate the
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Please show/discuss extensively how number theory is applied in cryptography.
Construct a 95 % confidence interval for the population proportion of adults who believe in UFOs.
Consider an equilateral triangle whose sides each have length s. Let a point be chosen uniformly from one side of the triangle. Let X denote the distance of the point chosen from the opposite vertex. Find the distribution function of X.
the iq scores are normally distributed with a mean of 100 and a standard deviation of 15.1 what is the probability that
What is the difference between standard normal distribution curve and normal distribution curve
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Using a pencil, paper, and a calculator, find the slope and the intercept term for Final = a + b Exam1. Show your work, step by step.
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