Mathematics, 07.03.2020 02:13 skyyk7205
A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the United States (Gallup website, September 12, 2012). Suppose a sample of 20 Ameri- cans is selected as part of a study of the state of the nation.
a. Compute the probability that exactly 4 of the 20 Americans surveyed are satisfied with the way things are going in the United States.
b. Compute the probability that at least 2 of the Americans surveyed are satisfied with satisfied with the way things are going in the United States.
c. For the sample of 20 Americans, compute the expected number of Americans who are number of Americans who are satisfied with the way things are going in the United States.
d. For the sample of 20 Americans, compute the variance and standard deviation of the the way things are going in the United States.
Answers: 3
Mathematics, 21.06.2019 20:00, jacobbrandon2002
What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )
Answers: 1
Mathematics, 21.06.2019 23:40, aydanbelle
Full year - williamshow many square inches are in 60 square feet? 5 square inches72 square inches720 square inche8.640 square inches
Answers: 1
A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the United...
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Mathematics, 24.12.2019 23:31
Mathematics, 24.12.2019 23:31