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1. Three fair coins are flipped and the up face on each is observed. Find the probability that all heads or all tails are observed.
2. Find the probability of drawing a red marble or a green marble when a single marble is drawn at random from an urn containing 7 black marbles, 6 green marbles, and 10 red marbles. (Assume the marbles are identical except for color.)
the mean weight on my sons football team is 185 pounds with a standard deviation of 20 pounds. determine the standard
A random sample of 20 patients in a weight loss clinical trial lost an average of 25 pounds over an 8 week period. The sample standard deviation is 10.
A simple random sample is found to be (0.7, 2.1). Can we conclude that 90% of households have between 0.7 and 2.1 children? Justify your answer.
In a study of 72 women, a researcher wants to know if cholesterol level is related to the women's highest attained degree (no degree, high school diploma
Customers enter the waiting line at a cafeteria on a first-come, first-served basis. The arrival rate follows a Poisson distribution, while service times follow an exponential distribution.
Formulate the null and alternative hypotheses for a hypothesis test. Identify the population and describe how to select a random sample for a hypothesis test. State in clear terms the conclusion that should be given if the null hypothesis is rejec..
Calculation of Mode Variance and Standard Deviation for Alcohol-related Accidents by Youngsters
find the lower amp upper limits of a confidence interval if the mean is eighteen percent and the margin of error is
Explain how you would change the simulation procedure if the assumption was that everyone was randomly guessing, so that the probability of a correct guess was .20 each time.
Construct an 80% confidence interval for the proportion of all adults who would define themselves as vegetarians.
Use the Probability applet or statistical software to simulate 100 free throws shot by a player who has probability 0.75 of making each shot. (In most software, the key phrase to look for is "Bernoulli trials." This is the technical term for indep..
Nobody has ever proved that immoral behavior by elected officials erodes public morality. Therefore, we must conclude that such behavior does not erode public.
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