The weight of a jar of jelly is normally distributed with a mean of 16 oz and a standard deviation of 0.02 oz. What is the probability that a jar of jelly contains more than 16.03 oz?
A) .0668
B) .1587
C) .4332
D) .9332

Question

Quizplus · Accepted Answer

We need to standardize the given distribution using Z score formula, Z = (X - μ) / σ
Z = (16.03 - 16) / 0.02 = 1.5
Now, we need to find the area under the standard normal distribution curve to the right of Z = 1.5. Using the standard normal distribution table or calculator, we find that the area is 0.0668. Therefore, the probability that a jar of jelly contains more than 16.03 oz is 0.0668 or 6.68%.

The Weight of a Jar of Jelly Is Normally Distributed