Question

There are 10 people waiting in line at a bank.

X = number of people who are served in the bank next 15 minutes.

There are a fixed number of observations, n.

A) True

B) False

Each observation can be categorized as being either a success or a failure (two outcomes), and X counts the number of successes.

A) True

B) False

The probability of success p is the same for each observation.

A) True

B) False

Observations are independent. That is, success or failure on one observation doesn't affect the probability of success or failure for any other observation.

A) True

B) False

Answer 1

There are a fixed number of observations, n -> True

Each observation can be categorized as being either a success or a failure, and X counts the number of successes -> True

The probability of success p is the same for each observation -> False. The people standing in front has higher probability of getting served

Observations are independent -> False

Success of a person standing towards the back depends on the success of person standing infront in the line