10 terms

According to a poll, 56% of voters support funding a new community center. A surveyor randomly selects 75 voters and asks each voter if he or she is in favor of the center. If being in favor of the center is a success, what is the probability of a success for this binomial experiment?

0.34

0.44

0.56

0.75

0.34

0.44

0.56

0.75

0.56

Forty-four percent of the members of the Science Club wear blue shirts. Which of the following is a binomial experiment?

Selecting eight members randomly and recording whether each member is wearing a blue shirt

Selecting eight members randomly and recording the number in the group wearing a blue shirt

Selecting members randomly until one without a blue shirt is chosen

Selecting members randomly until one with a blue shirt is chosen

Selecting eight members randomly and recording whether each member is wearing a blue shirt

Selecting eight members randomly and recording the number in the group wearing a blue shirt

Selecting members randomly until one without a blue shirt is chosen

Selecting members randomly until one with a blue shirt is chosen

Selecting eight members randomly and recording whether each member is wearing a blue shirt

Janie flips a coin 70 times and records if it comes up heads. If getting heads is a success, what is the probability of a failure?

0.2

0.5

0.7

1.00

0.2

0.5

0.7

1.00

0.5

According to a survey, 15% of city workers take the bus to work. Donatella randomly surveys 10 workers. What is the probability that exactly 6 workers take the bus to work? Round the answer to the nearest thousandth.

NOT C

Dion flips a coin 20 times and records if it comes up heads. If getting heads is a success, what is the probability of a success on each roll?

0.2

0.3

0.5

1.00

0.2

0.3

0.5

1.00

0.5

Rina spins the spinner below 30 times. A success occurs when the spinner lands on a number that is greater than 6.

What is the probability of a success and a failure for this experiment?

What is the probability of a success and a failure for this experiment?

P(Success)= 1/4

P(Failure)= 3/4

P(Failure)= 3/4

Thirty-three percent of all students at a high school like beef stew. Out of 300 students, 40 are selected randomly and asked whether they liked beef stew. If liking beef stew is a success, what is the probability of a failure for this binomial experiment?

0.33

0.40

0.57

0.67

0.33

0.40

0.57

0.67

0.67

Laila guesses on all 20 questions of a multiple-choice test. Each question has 4 answer choices. What is the probability of a success and a failure for this experiment?

P(Success)= 1/4

P(Failure)= 3/4

P(Failure)= 3/4

Van guessed on all 8 questions of a multiple-choice quiz. Each question has 4 answer choices. What is the probability that he got exactly 1 question correct? Round the answer to the nearest thousandth.

B

Which of the following is a binomial experiment?

Rolling a six-sided number cube 24 times and recording if a 4 comes up

Rolling a six-sided number cube and recording the number until a 4 comes up

Rolling a six-sided number cube and recording the number until an even number comes up

Rolling a six-sided number cube 24 times and recording the number that comes up

Rolling a six-sided number cube 24 times and recording if a 4 comes up

Rolling a six-sided number cube and recording the number until a 4 comes up

Rolling a six-sided number cube and recording the number until an even number comes up

Rolling a six-sided number cube 24 times and recording the number that comes up

NOT C