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Let a random variable x represent the number of heads when a fair coin is tossed three times. (SHOW WORK PLEASE)
x P(x)
0 0.125
1 0.375
2 0.375
3 0.125
Determine the mean and standard deviation of x. (Round the answer to two decimal places.)
A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 175 and a standard deviation of 15. If an applicant is randomly selected, find the probability of a rating that is between 150 and 200.
Make a stemplot of the data and briefly describe its center, shape and spread
Write a short paragraph about the possible effects of outliers on a least-squares regression line using this example to illustrate your ideas.
Do these data show enough evidence to support the conclusion that there is no difference in the proportion of men and women who think weight is a factor in purchasing a laptop? Use a 5% level of significance.
Your task is to respond to her statement and, in doing so, explain why it is appropriate to find the probability for specific ranges of values for a continuous.
A university president randomly selects 10 tenured faculty from the College of Arts and Sciences and 10 ten- ured faculty from the College of Business. Each faculty member is then asked to rate his or her job satisfaction on a scale of 1 (very d..
the time x it takes to reboot a certain system has gamma distribution with ex 20 min and stdx 10 min.a compute
Show that sn also follows a Cauchy distribution.- What assumption has been violated in this case that makes the weak law of large numbers not applicable?
the weights of a fish in a certain pond that is regularly stocked are considered to be normally distributed with a mean
Find the midrange for the following group of data items: what is the midrange rounded to the nearest tenth?
He asks you to develop a proposal for the study and submit it to him. Develop the management-research question hierarchy that will help you to develop a specific proposal.
during a gas leak it is known that there is a 25 risk of developing breathing problems. in the midst of a recent gas
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