1- Given the following distribution:

Outcome Value of Random Variable Probability

A 1 .4

B 2 .3

C 3 .2

D 4 . 1

The expected value is 3.

A) True

B) False

2- A new young executive is perplexed at the number of interruptions that occur due to employee relations. She has decided to track the number of interruptions that occur during each hour of her day. Over the last month, she has determined that between 0 and 3 interruptions occur during any given hour of her day. The data is shown below.

Number of Interruptions in 1 hour Probability

0 interruption .5

1 interruptions .3

2 interruptions .1

3 interruptions .1

On average, she should expect 0.8 interruptions per hour.

A) True

B) False

3- A new young executive is perplexed at the number of interruptions that occur due to employee relations. She has decided to track the number of interruptions that occur during each hour of her day. Over the last month, she has determined that between 0 and 3 interruptions occur during any given hour of her day. The data is shown below

Number of Interruptions in 1 hour Probability

0 interruption .4

1 interruptions .3

2 interruptions .2

3 interruptions .1

A) True

B) False

4- Theexpected valueof a binomial distribution is expressed asnp,wherenequals the number of trials andpequals the probability of success of any individual trial.

A)True

B) False

5- The standard deviation equals the square of the variance.

A) True

B) False