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Two dice are tossed. Let X be the smaller number of points. Let Y be the larger number of points. If both dice show the same number, say, z points, then X = Y = z.
(a) Find the joint probability mass function of (X, Y).
(b) Are X and Y independent? Explain.
(c) Find the probability mass function of X. (d) If X = 2, what is the probability that Y = 5?
q1. bmi in children is approximately normally distributed with a mean of 24.5 and a standard deviation of 6.2. a bmi
Explain why you would choose these two? What did you learn about correlation and causation while completing the course? Differentiate between correlation and causation.
a simple random sample of 25 recent graduates from a particular college gives a sample mean starting salary of 24000
Determine if there is a linear correlation between annual income and the amount of insurance? What is the linear regression line for this data?
a professor needs help from 3 student helpers to complete 4 tasks. the first task is grading the second is scanning the
multivariable methods can account for variables that are not known during the course of the study?a. trueb.
Net sales of the Kaiser Aluminum and Chemical Corporation for the period beginning in 1975 and ending in 1984 were:
salt-free diets are often prescribed to people with high blood pressure. the data shown below were obtained from an
suppose that a hypothesis test is performed at a small significance level. state the appropriate conclusion in each
What is the advantage of a randomized experiment in which the investigators randomly assign treatment conditions to subject over an observational study in which the subject self-select the treatment groups?
Bulloch County has never allowed liquor to be sold in restaurants. However in 3 months, county residents are scheduled to vote on a referendum to allow liquor to be sold by the drink.
Create a 95% confidence interval for proportion of highly educated women who left careers for family reasons and who wish to return to work.
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