Random Variable and Probability Distribution, Mean and Variance

Identify the value that should be placed in the question mark.

Note: Remember your answer in each item so that you can use your time wisely.

• 0.2

• 0.6

• 1.2

• 1.6

Identify the value that should be placed in the question mark. Note: Remember your answer in each item so that you can use your time wisely.

• 0.2

• 0

• 0.3

• 0.1

Identify the value that should be placed in the question mark.

Note: Remember your answer in each item so that you can use your time wisely.

• 0.3

• 0.4

• 0.5

• 0.6

Identify the value that should be placed in the question mark. Note: Remember your answer in each item so that you can use your time wisely.

• 0.3

• 0.4

• 0.5

• 0.6

What is the variance of the distribution?

• 8.04

• 8.40

• 9.50

• 9.05

What is the variance of the distribution?

• 8.04

• 8.40

• 9.50

• 9.05

What is the numerical quantity assigned to the outcome of an experiment usually denoted by an uppercase letter such as X?

• Frequency

• Probability

• Random variable

• Sample

The graph shows the probability distribution for the number of orders per week for a randomly selected week at an Etsy store. What is the expected number of orders and the standard deviations of the number of orders?

• 44.5, 2.449

• 44.5, 2.291

• 44.64, 1.694

• 44.64, 1.672

Identify the value that should be placed in the question mark. Note: Remember your answer in each item so that you can use your time wisely.

• 0.3

• 0.4

• 0.5

• 0.6

Identify the value that should be placed in the question mark.

Note: Remember your answer in each item so that you can use your time wisely.

• 0.3

• 0.4

• 0.5

• 0.6