Find the probability of getting
A 5-card poker hand is dealt. Find the probability of getting
(a) four of a kind
(b) three of a kind
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A business major wants to determine whether the variation in advertising costs of hair salons is different from the variation in advertising costs of nail salons. He surveys several businesses and finds the standard deviation in monthly advertisin
Explain how and why one is able to first distinguish a triploblastic embryo from a diploblastic embryo?
A random sample of size 64 is to be used to test the null hypothesis that for a certain age group the mean score on an achievement test (the mean of a normal population with ?2 = 256) is less than or equal to 40.0 against the alternative that it i
Past records at an appliance store show that 60% of the customers who look at appliances will buy one. What is the probability that the first sale of the day will be made to the fourth customer who looks at an appliance in this store?
A set of 4 numbers is selected at random from S = {1,2,3,4,5,6,7,8} without replacement. What is the probability that
Suppose that X is a random variable with moment generating function MX(s) and characteristic function CX (s). Let Y = aX + b for real numbers a and b. Find MY (s) and CY (s) in terms of the corresponding functions for X.
What is the p-value associated with the test of hypothesis you conducted?
Accept on faith that the characteristic function of the Cauchy distribution with density fX (x) = 1/(?(1+x2)) for ?? < x < ? is C(s) = E(e^isX) = e^?|s|. Suppose that X and Y are independent, and each has the Cauchy distribution.
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