8.1.1. Probability

Multiple Choice

What is the sample space when rolling a six-sided die?

• 1, 2, 3, 4, 5, 6

• Only even numbers

• All numbers are likely

• Any number between 1 and 6

Match

Match each situation with its sample space

• Nadia selects a letter at random from the word “CATS”.

• Austin draws a numbered marble from a jar that includes marbles from 5 to 12.

• Aria randomly selects a letter from the first ten letters in the alphabet.

C, A, T, S

5, 6, 7, 8, 9, 10, 11, 12

A, B, C, D, E, F, G, H, I, J

• C, A, T, S

• 5, 6, 7, 8, 9, 10, 11, 12

• A, B, C, D, E, F, G, H, I, J

Match

Match each of the situation's with its corresponding probability

• Nadia selects a letter “T” at random from the word “CATS”.

• Austin draws an even numbered marble from a jar that includes marbles from 5 to 12.

• Aria randomly selects the letter “C” from the first ten letters in the alphabet.

25%

1/2

0.10

• 25%

• 1/2

• 0.10

Labelling

A pot contains 8 red balls, 1 blue ball, and 6 yellow balls. A ball is drawn at random.

Sort the answers where they belong

fraction first

percent or decimal second

Drag labels to their correct position on the image

47.7%

7/15

6.7%

6/15=2/5

40%

1/15

Match

Match each scenario with the correct probability

• The probability of getting heads when flipping a two-sided coin.

• The probability of rolling a 2 or 4 on a six-sided number cube.

• The probability of randomly selecting the letter S in the word “MISSISSIPPI”.

50%

1/3

0.36

• 50%

• 1/3

• 0.36

Multiple Select

What is the probability the spinner will land on a shaded section?

Select all that apply.

• 1/3

• 33.3%

• 1/6

• 0.33%

Let's Take a Short Break

Multiple Choice

The weatherman predicts that there is a 90% chance of rain. How likely or certain is it to rain?

• It is likely to rain

• Certain to rain

• Certain there will be no rain

• It is not likely to rain

Hotspot

Which bag of marbles would you be grabbing from if the probability of randomly selecting a purple marble to be 1/3?

Multiple Choice

Alexander flips a coin. What is the probability of the coin landing on heads?

• P(heads) = 1/2

• P(heads) = 2/1

• P(heads) = 2/3

• P(heads) = 1/4

Match

There is a bag of marbles that contains 6 red marbles, 3 blue marbles, 9 black marbles, and 2 white marbles. Match each event with the probability.

• P(red)

• P(blue)

• P(black)

• P(white)

30%

15%

45%

10%

• 30%

• 15%

• 45%

• 10%

Multiple Choice

Which of the following events is more likely to happen using the spinner?

• P(yellow)

• P(blue)

• P(even number)

• P(8)

Multiple Choice

Which statement below best describes the difference between theoretical probability and experimental probability.

• Theoretical probability is the same as experimental probability

• Experimental probability is found using math without conducting the event, but theoretical probability is found through a series of trials

• Theoretical probability is found by guessing the probability the event will happen, but experimental probability is found through two or three tries of the event.

• Theoretical probability is found using math without conducting the event, but experimental probability is found through a series of trails

Draw

There is a spinner with six colors that is part of an experiment. The frequency table below shows the results from each corresponding trail.

Sort the information based on the results in the frequency table.

Multiple Choice

Josh flips a coin and gets tails 30 out of 50 times. What is the experimental probability of the coin landing tails side up?

• 30%

• 50%

• 0.6%

• 60%

Match

Match the experimental probability of each event based on the frequency table shown .

• Total number of trials

• Experimental probability of spinning a blue

• Experimental probability of spinning a red

• Experimental probability of spinning a green

12

25%

42%

33%

• 12

• 25%

• 42%

• 33%

Multiple Choice

Nadia randomly selected a letter from the alphabet 50 times in a row. She selected the letter T 4 times. What is the experimental probability for Nadia to select T?

• 8%

• 4%

• 50%

• 26%

What Now...