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An experiment is conducted where two standard 6 sided dice are rolled and the sum of the numbers that show face up is recorded.
(a) What is the random variable?
(b) Is the random variable discrete or continuous?
(c) What values can the random variable assume?
(d) List the probability distribution of the random variable.
Let X ~ Binomial (n1?( and Y ~Binomialn2?) with X and Y chosen independently. Let Z = X+ Y . What will be the distribution of Z?
Children make choices Many new products introduced into the market are targeted toward children. The choice behavior of children with regard to new products.
for a normal distribution with a zero mean and standard deviation of one use 10 random variables samples to compute the
A sample of 18 observations taken from a normally distributed population produced the following data.
an aircraft has 211 seats. when someone buys a ticket for a flight there is a .0741 probability that the person will
a. What was the manager's total rate of return for the year? b. What was the manager's real rate of return if the inflation rate during the year was 2.3%?
A random sample of 27 items is drawn from a population whose standard deviation is unknown. The sample mean is = 940 and the sample standard deviation
Based upon all of this information, do a "goodness-of-fit" test to see if the distributions are the same as they were two years ago. Use a level of confidence of .01. Should we accept Ho or reject Ho?
Use your knowledge of the historical events referred to by the simple statements to determine the truth value of the compound statements.- Both Hitler ran the Third Reich and Lindbergh crossed the Atlantic if neither Einstein discovered aspirin n..
Can the college conclude that the students in the new program are significantly different from the rest of the freshman class? Use a two-tailed test with a .O5.
Calculate a 90% confidence interval for the population mean grams of fat per serving of chocolate chip cookies sold in supermarkets.
Constructing a 95% confidence interval for the true length of time for all pepper seeds to germinate you must calculate the margin of error. The margin of error in this case is 0.60.
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