10 Jun Buss
QUESTION 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- If z is a standard normal variable, find the probability.
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