buss

QUESTION 1

1. Assume that X has a normal distribution, and find the indicated probability.
   
   The mean is μ = 60.0 and the standard deviation is σ = 4.0.
   Find the probability that X is less than 53.0.0.04010.08020.95990.5589

1 points   

QUESTION 2

1. Assume that X has a normal distribution, and find the indicated probability.
   
   The mean is μ = 15.2 and the standard deviation is σ = 0.9.
   Find the probability that X is greater than 17.0.98210.97720.97130.0228

1 points   

QUESTION 3

1. Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
   
   
   0.84850.87080.89070.1292

1 points   

QUESTION 4

1. Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
   
   
   0.17880.35760.64240.8212

1 points   

QUESTION 5

1. Find the indicated probability.
   
   The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.32 inches?47.72%37.45%97.72%2.28%

1 points   

QUESTION 6

1. Find the indicated probability.
   
   The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What is the probability that the diameter of a randomly selected pencil will be less than 0.285 inches?0.06680.93320.43320.0596

1 points   

QUESTION 7

1. Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
   
   Shaded area is 0.4013.
   0.570.25-0.57-0.25

1 points   

QUESTION 8

1. Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
   
   Shaded area is 0.0694.
   1.261.451.481.39

1 points   

QUESTION 9

1. If z is a standard normal variable, find the probability.
   
   The probability that z lies between -2.41 and 00.09480.49200.49100.5080

1 points   

QUESTION 10

1. If z is a standard normal variable, find the probability.
   
   The probability that z lies between 0.7 and 1.980.21751.73410.2181-0.2181