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Suppose that a box contains 6 cameras and that 5 of them are defective. A sample of 2 cameras is selected at random. Define the random variable X
X as the number of defective cameras in the sample.
Write the probability distribution for X
k P(X=k)
? ?
What is the expected value of X?
Suppose the grouper is 3-5 feet long. What is the probability that it is from Monroe?- Suppose the grouper is from Sarasota. What is the probability that the grouper is longer than 5 feet?
a. Explain the difference between an outlier and an influential point.
Seeking to estimate the population proportion of American Workers with health insurance, researchers collect a sample of 1,012 people and find that 64% of them
Compute a seasonalized or adjusted sales forecast.
suppose iq scores were obtained from randomly selected couples. for 20 such pairs of people the linear correlation
a purse contains 101 in anthony dollars and 1 in pennies. smith is allowed to draw and keep coins one at a time until
a. Compute the cost of preferred stock for Medco Corp. (Input your answer as a percent rounded to 2 decimal places.)
Suppose that you have 10 observations that have a mean of 7, a median of 6, and a standard deviation of 3. If you halve the value of each observation, what are the new values of the: Mean? Median? Standard deviation
Generate a training sample of size 100 for each class, as well as a test sample of 5,000 per class. (Best to generate the centroids matrices per class once and store them).
An independent researcher has decided to study variations in TV viewing habits among three American cities. She has managed to randomly sample households in Chicago, Atlanta, and Minneapolis and gather data on the daily "on" times for households o..
bookstores like education one reason being that educated peopleare more likely to spend money on books. national data
What is the null hypothesis? What is the alternative hypothesis?
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