Consider an experiment that involves repeatedly rolling a ...

[xclash]

Consider an experiment that involves repeatedly rolling a six-sided die. Which of the following is a binomial random variable?
 a. The number of rolls until a 4 is rolled for the first time.
  b. The number of times that a 4 is rolled when the die is rolled six times.
  c. The sum of the numbers observed on the first six rolls.
  d. It is not possible to have a binomial random variable when rolling a six-sided die because a binomial random variable allows only two possible outcomes, not six.

Question 2

Suppose that a 95 confidence interval for the proportion of teen drivers who were involved in a car accident is found to be (0.1425, 0.2875). What is the value of the point estimate for the population proportion of teen drivers who were involved in a car accident?

[T4T]

Answer to Question 1

B

Answer to Question 2

0.215

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