Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent:
-The mean clotting time of blood is 7.35 seconds, with a standard deviation of 0.35 seconds. What is the probability that blood clotting time will be less than 7 seconds?
A) 14%
B) 16%
C) 15%
D) 84%

Question

Quizplus · Accepted Answer

To find the probability, calculate the z-score: z = (7 - 7.35) / 0.35 = -1. Then, use the standard normal distribution table to find the probability corresponding to z = -1, which is approximately 0.1587 or 16%.

Assume the Distribution Is Normal