# Question: A die is rolled 20 times and the number of

A die is rolled 20 times, and the number of “fives” that occur is reported as being the random variable. Explain why x is a binomial random variable.

## Relevant Questions

Four cards are selected, one at a time, from a standard deck of 52 playing cards. Let x represent the number of aces drawn in the set of four cards. a. If this experiment is completed without replacement, explain why x is ...Use the probability function for three coin tosses as demonstrated on page 239 and verify the probabilities for x _ 0, 2 and 3. According to a National Safety Council report, up to 78% of automobile collisions are a result of distractions such as text messaging, phoning a pal, or fumbling with the stereo. Consider a randomly selected group of 18 ...In the biathlon event of the Olympic Games, a participant skis cross-country and on four intermittent occasions stops at a rifle range and shoots a set of five shots. If the center of the target is hit, no penalty points are ...a. Calculate the mean and standard deviation of the random variable by using formulas (5.1), (5.3a), and (5.4). b. Calculate the mean and standard deviation using formulas (5.7) and (5.8). c. Compare the results of parts a ...Post your question