Probability

Bella will roll a number cube, labeled 1 through 6, 300 times. About how many times could Bella expect to roll a number less than 4?

• 100

• 50

• 200

• 150

Arya has a number cube labeled 1, 2, 3, 4, 5, and 6. He will roll the cube 100 times. what is the probability of getting 5 if he will roll the dice 101th time?

• 3

• 1/6

• 2

• 2/3

McKayla flipped a coin 150 times. How many times could McKayla expect the coin to land on tails?

• 25

• 50

• 75

• 100

Deon has 7 white chips, 5 red chips, and 8 blue chips in a bag. Without looking, Deon pulls a chip out, records the color, and puts it back in the bag. He does this 200 times. About how many times could Deon expect to pull out a blue chip?

• 80

• 25

• 100

• 55

The probability of winning a game is 1 : 12. If Jada plays the game 60 times, how many times could she expect to win?

• 12

• 5

• 8

• 10

A farmer found 10 out of every 25 tomato plants will grow. This year, the farmer planted 200 tomato plants. How many plants can the farmer expect to grow?

• 50

• 80

• 100

• 125

Find the probability of rolling greater than a 1 on a single die.

• 5/6

• 6/6

• 4/6

• 1/6

Sammy has a counter that is red on one side and green on the other. Sammy flips this counter 20 times. What is the probability that the 21st flip will result in the counter landing red side up?

• 10/21

• 1/4

• 1/2

• 1/21

A coin is flipped 150 times. The results of the experiment are shown in the following table:

Heads Tails

63 87

Which of the following statements best describes the experimental probability of getting heads?

• It is equal to the theoretical probability.

• It is 8% lower than the theoretical probability.

• It is 8% higher than the theoretical probability.

• The experimental probability cannot be concluded from the data in the table.

The number of marbles of different colors stored in a hat is listed below:

4 red marbles

10 green marbles

7 blue marbles

Without looking in the hat, Dan takes out a marble at random. He replaces the marble and then takes out another marble from the hat. What is the probability that Dan takes out a blue marble in both draws?

• 1/9

• 2/21

• 1/2

• 2/3