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A family plans to have 3 children. For each birth, assume that the probability of a boy is the same as the probability of a girl. What is the probability that they will have at least one boy and at least one girl?
0.5
0.125
0.75
0.875
None of these
the relationship assumed linear between yield of bourbon y and aging time x was studied by observing yields yi from
A mean of 54 and a standard deviation of 5; the N(54, 5) distribution. What is the relative frequency of classical CDs with a playing time of X of 59 minutes?
A researcher hypothesizes that the variation in the amount of money spent on business dinners is greater than the variation of the amount of money spent on lunches. The variance of nine business dinners was $6.12 and the variance of 12 business l..
q1. explain the difference between multiple independent variables and multiple levels of independent variables. which
What is the probability that at least 8 of the next 15 errors are due to operator errors? What is the probability that no more than 3/10 failures are due to operators?
according tonbspadvertising agenbspthe average base salary for women working as copywriters in advertising firms is
The manufacturer considers the bottom 5% of the cats underweight and the top 10% overweight. Compute what weight range should be specified for each of the three categories.
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
according to a website about salaries the national average salary as of october 2003 for a human resources clerk was
If the probability distribution of X is: Determine the expected value of X? Find out the variance of X?
What is the probability that the first and the last ones on the EP are the relationship songs?
Find a 90% confidence interval for the population mean salary of such personnel. What is the margin of error.
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