Author:
Christine Farr

Question 1 of 251.0 PointsA scatterplot allows one to see:A.whether there is any relationship between two variables B.what type of relationship there is between two variables C.Both (a) and (b) are correct D.Neither (a) nor (b) is correct Reset SelectionPart 2 of 9 -Question 2 of 251.0 PointsIn a recent study, the following data were obtained in response to the question, “Do you favor recycling in your neighborhood?”YesNoNo OpinionMales251510Females301010If a person is picked at random, what is the probability that the person is either male or has no opinion regarding recycling?A.3/5 B.3/10 C.4/5 D.7/10 Reset SelectionQuestion 3 of 251.0 PointsIf two events are mutually exclusive, what is the probability that one or the other occurs?A.0.50 B.0.25 C.1.00 D.Cannot be determined from the information given. Reset SelectionPart 3 of 9 -Question 4 of 251.0 PointsThe following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.x012345P (X=x)0.200.250.200.150.100.10What is the expected value of X?A.3.65 B.6.25 C.1.20 D.2.0 Reset SelectionQuestion 5 of 251.0 PointsFind the variance of the following probability distribution.

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