A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of ½ ounce. (i) The probability that a loaf of bread is 22.25 ounces is 0.0.
(ii. The probability that a loaf of bread is between 21.75 and 22.25 ounces is 0.3830.
(iii) The probability that a loaf of bread is

Question

A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of ½ ounce. (i) The probability that a loaf of bread is 22.25 ounces is 0.0.
(ii. The probability that a loaf of bread is between 21.75 and 22.25 ounces is 0.3830.
(iii) The probability that a loaf of bread is < 24 ounces is 1.0.
A) (i), (ii), and (iii) are all correct statements.
B) (i) is a correct statement but not (ii) or (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (i) and (ii) are correct statements but not (iii).
E) (ii) and (iii) are correct statements but not (i).

Quizplus · Accepted Answer

(i) is correct because the probability of a loaf of bread being exactly 22.25 ounces is very small, as the normal distribution is continuous.(ii) is correct because the probability of a loaf of bread being between 21.75 and 22.25 ounces can be calculated using the normal distribution formula and is equal to 0.3830.(iii) is correct because the probability of a loaf of bread being less than 24 ounces is equal to 1, as the normal distribution extends to infinity in both directions.

A Loaf of Bread Is Normally Distributed with a Mean