Question

A normal distribution is used to model each situation. Which requires a continuity correction? A The masses of individual apples picked from a grove. C The number of wins when the same bet is repeatedly placed on the spin of a roulette wheel. B The heights of plants in a field of soybeans. D All of these require a continuity correction.

Answer 1

Solution :

Answer : C. The number of wins when the same bet is repeatedly placed on the spin of a roulette wheel.

Explanation :

Continuity correction is used when we use continuous probability distribution approximation to discrete probability distribution.

Here in example in hand, The number of wins when the same bet is repeatedly placed on the spin of a roulette wheel, is discrete random variable. Hence to use normal distribution to model this situation, we require continuity correction. Remaining options A and C are continuous random variables.