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A recent survey of Fortune 500 firms found that on average, they contribute $332.54 per month for each salaried employee's health insurance. If you are told that virtually all salaried employees at Fortune 500 firms receive a health insurance contribution between $220.61 and $444.47, and assuming a bell-shaped distribution, what must the standard deviation for this data be?
What kind of variable should you create in order to include information about a categorical variable among your X variables?
Find the probability that the number who say cashews are their favorite nut is? (a) exactly? three, (b) at least? four, and? (c) at most two.
Antidepressants and bone fractures. For a period of five years, physicians at McGill University Health Center followed more than 5000 adults over the age of 50.
Suppose that population standard deviation is known to be 10mmHg and samples are from Normal population, test a= 0.01 if blood pressure reading is different from 135mmHg
The chair of the board of directors says, "There is a 50% chance this company will earn a profit, a 30% chance it will break even, and a 20% chance it will lose money next quarter." Use an addition rule to find the probability the company will not ..
Draw a frequency polygon for these data (start by defining intervals of the data and counting the data points in each interval). Also draw an ogive and a column graph.
A basket of apples contains 2 Red Delicious, 3 Macintosh, 3 Granny Smith, and 4 Golden Delicious. You grab 4 apples (without replacement) to make a pie.
Topic: Statistics: Monte Carlo Algorithm. Describe a monte carlo algorithm to approximate the expected number of students who end up selecting their own exam paper
suppose two random variables x and y are independent with x n24 and y n03. w x-y2a. find the distribution of w.b.
Find the cumulative distribution function.- Find the probability that at most four additional hours are slept.- Find the probability that at least two additional hours are slept per night.
On each turn, you will roll two dice. To win, you must roll a total of 3 or roll a 3 on one of the dice. How many turns might you expect this to take?
in a certain town 10 of the families have no children 10 have one child 40 have two children 30 have three children and
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