The mean weekly wages of a sample of 15 employees of a company are $1035. The mean weekly wages of a sample of 20 employees of another company are $1090. Find the combined mean for these 35 employees.
Answer to relevant QuestionsThe mean GPA of five students is 3.21. The GPAs of four of these five students are, respectively, 3.85, 2.67, 3.45, and 2.91. Find the GPA of the fifth student. Given that A and B are two mutually exclusive events, find P(A or B) for the following. a. P(A) = .38 and P(B) = .59 b. P(A) = .15 and P(B) = .23 Two thousand randomly selected adults were asked if they think they are financially better off than their parents. The following table gives the two-way classification of the responses based on the education levels of the ...According to an Automobile Association of America report, 9.6% of Americans traveled by car over the 2011 Memorial Day weekend and 88.09% stayed home. What is the probability that a randomly selected American stayed home or ...A veterinarian assigned to a racetrack has received a tip that one or more of the 12 horses in the third race have been doped. She has time to test only 3 horses. How many ways are there to randomly select 3 horses from ...
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