Probability and Sampling

The mean and standard deviation of a population are 200 and 20, respectively. Sample size is 25. 
What is the mean of the sampling distribution?

• 200
• 16
• 25
• 4

The mean and standard deviation of a population are 200 and 20, respectively. Sample size is 25. 
What is the standard error of the sampling distribution?

• 200
• 16
• 25
• 4

The mean and standard deviation of a population are 200 and 20, respectively. Sample size is 25. 
What is n?

• 200
• 16
• 25
• 4

The mean and standard deviation of a population are 200 and 20, respectively. Sample size is 25. 
What is the variance of the sampling distribution?

• 200
• 16
• 25
• 4

What name refers to the standard deviation of the sampling distribution?

• sampling deviation
• mean deviation
• sampling error
• standard error

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting a data value less than 190?

• 69%
• 42%
• 31%
• 58%

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting 25 data values with a mean less than 190?

• 69%
• 0.6%
• 31%
• 99%

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting 64 data values with a mean between 195 and 200?

• 41%%
• 48%
• 1.5%
• 0.5%

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting 100 data values with a mean greater than 202?

• 45%
• 36%
• 25%
• 16%