aptsj Which of the following variables could follow s binomial disaribution x-ti

Question

aptsj Which of the following variables could follow s binomial disaribution x-time in takes arandomly selected student to complete a multiple choice exam b. W number of women out of 25 that are taller than 68 inches c T number of textbooks a randomly selected student bought this semester d. All of the above e. None of the above 8 (2 pts.) In an attempt to predict a man's weight using their height, researches collected height and weight measurements for 25 randomly selected men. The linear least squares regression model resulted in an R, value of 0.2937. what does this tell us? a. That there is a weak increasing linear relationship b. About 29.37% of the variability in weight is explained by the linear relationship with c. d. e. height. The linear model should be discarded because it is small. All of the above None of the above 9. (2 pts.) Which of the following statements are true about X? a. The standard deviation of the distribution of R is the standard error, . " b. The distribution of X is approximately normal as long as it comes from a sampl more than 30 observations. C. It is an unbiased estimator of . d. All of the above e. None of the above

Explanation / Answer

7) Option-B

8) Option-A

9) Option-B

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