STATISTICS BEC1 Final Exam – Questions and Answers | Rated A+ 2023 | WGU

STATISTICS BEC1 Final Exam – Questions and Answers | Rated A+ 2023 | WGU. A furniture manufacturer offers bookcases in 5 different sizes and 3 different colors. If every color is available in every size, then the total number of different bookcases is A.5 B.8 C.15 D.30 Answer Key: C Part 3 of 9 - 3.0/ 3.0 Points Question 4 of 25 1.0/ 1.0 Points Find the variance of the following probability distribution. X P(X) 1 0.10 2 0.35 3 0.10 4 0.15 5 0.30 A.1.44 B.2.06 C.1.76 D.1.2 Answer Key: B Question 5 of 25 1.0/ 1.0 Points Find the variance of the following probability distribution. X P(X) 1 0.20 2 0.35 3 0.10 4 0.25 5 0.10 A.1.83 B.1.31 C.1.25 D.1.71 Answer Key: D Question 6 of 25 1.0/ 1.0 Points In a small town, 60% of the households have dogs. If 5 households are randomly selected, what is the probability that at least 4 of them have dogs? A.0.337 B.0.8 C.3 D.0.259 Answer Key: A Part 4 of 9 - 5.0/ 6.0 Points Question 7 of 25 0.0/ 1.0 Points The standard deviation of a probability distribution must be: A.a nonnegative number B.a number between 0 and 1 C.a negative number D.less than the value of the mean Answer Key: A Question 8 of 25 1.0/ 1.0 Points The standard deviation of is usually called the