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In a certain city 30% of the people are Conservatives, 50% are Liberals, and 20% are Independents. In a given election, 2/3 of the Conservatives voted, 80% of the Liberals voted, and 50% of the Independents voted. If we pick a voter at random what is the probability that she is a liberal?
What is the relationship between the variance and the standard deviation?
planning parenthood reg a national organization that assists teenage mothers with pregnancy estimates that
13% red, 14% yellow, 16% green, 20% orange, and 24% blue. In a random sample of 12 M & M's what is the probability of having 2 of each color?
Costs of Televisions Listed below are prices (in dollars) and quality rating scores of rare-projection televisions (based on data from Consumer Reports). All of the televisions have screen sizes of 55 in or 56 in.
a health researcher read that 200 lb man can burn 546 calorieshour playing tennis. 36 man sample withe a mean of 544.8
suppose you want to test the claim that mu!=3.5 with standard deviation unknown. Given a sample size of n = 40 and a level of significance of alpha=.05, when should you reject H0.
several psychology students are unprepared for a surprise truefalse test with 11 questions and all of their answers or
Based on this information, by what factor does the risk of having an accident increase due to driving while intoxicated?
Extrapolating this data by using the sum of squares method would further reveal any discretionary variances in relationship to the mean?
a civil service exam yields scores which are normally distributed with a mean of 81 and a standard deviation of 5.5.
F (x) : 2. Find mean , variance 2; and standard deviation Of continuous r.v. Let X equal weight of a randomly selected quarter-pounder in pounds. What is P (0:20
question the average 1-ounce chocolate chip cookie contains 110 calories. a random sample of 15 different brands of
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