[1] Assume that the number of watches produced every hour is
normally distributed with a mean of 500 and a standard deviation of
100. What is the probability that in a randomly selected hour the
number of watches produced is greater than 500?
A. 25%
B. 100%
C. 0%
D. 50%
[2] Assume that the number of watches produced every hour is
normally distributed with a mean of 500 and a standard deviation of
100. What is the probability that in a randomly selected hour the
number of watches produced is less than 700?
A. almost 0
B. 0.0228
C. 0.9772
D. 0.4772
[3] Assume that the number of watches produced every hour is
normally distributed with a mean of 500 and a standard deviation of
100. What is the probability that in a randomly selected hour the
number of watches produced is greater than 700?
A. 0.9772
B. almost 0
C. 0.4772
D. 0.0228
[4] Assume that the number of watches produced every hour is
normally distributed with a mean of 500 and a standard deviation of
100. What is the probability that in a randomly selected hour the
number of watches produced is between 300 than 700?
A. 0.9545
B. 0.0445
C. almost 0
D. 0.4545
[5] Assume that the number of watches produced every hour is
normally distributed with a mean of 500 and a standard deviation of
100. What is the probability that in a randomly selected hour the
number of watches produced is less than 300 or more than 700?
A. 0.0455
B. 0.4545
C. almost 0
D. 0.9545
