Chapter 5

Question 1

random variable

Answer 1

determined by chance; result of an outcome or experiment

Question 2

probability distribution

Answer 2

matches a random variable with its corresponding probability

Question 3

requirements of a probability distribution

Answer 3

1. x is a number that corresponds to a probability
2. the sum of all probabilities is 1
3. each probability is between 0 and 1

Question 4

expected value

Answer 4

mean of a probability distribution

Question 5

requirements of a binomial probability distribution

Answer 5

1. fixed number of trials
2. trials are independent
3. each trial may only have 2 outcomes

Question 6

binomialpdf

Answer 6

exactly x

Question 7

binomialcdf

Answer 7

at most x

Question 8

mean of binomial probabilities

Answer 8

(n)(p)

Question 9

standard deviation of binomial probability

Answer 9

square root (n)(p)(q)

Question 10

variance of binomial probability

Answer 10

(n)(p)(q)