Intro to probability

Intro to probability

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Multiple Choice

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

Multiple Choice

Find the probability of drawing a 10 from a standard deck of 52 cards.

• 1 out of 52
• 13 out of 52
• 26 out of 52
• 4 out of 52

Multiple Choice

What is the probability of spinning red?

• 0
• 5/12
• 1/2
• 3/4

Multiple Choice

What is the probability of spinning green?

• 0

• 1/4

• 1/2

• 3/4

Multiple Choice

For a two-headed coin, the experimental probability of getting tails is : P(tails) = 1/2 = 0.5

• True
• Could be false
• Could be true
• False

Multiple Choice

Random means 

• that the choice is made so each item has an equal chance of being solved.

• that the choice ran the kingdom.

• that everyone gets  chosen.

• that the choice is made so each item has an equal chance of being chosen.

Multiple Choice

Frequency means __________

• Times the outcomes appears

• Experiments

• trials

Multiple Choice

Jason rolls a die 14 times. What is the Experimental probability that he will roll a 2 ?

• 2/6

• 3/6

• 3/14

• 1/6

Multiple Choice

Theoretical probability is based on ___________

• What you have. Without experiments

• your tally. With experiments

Multiple Choice

The probability of flipping a coin and landing on tails is 1/2.
If you flip the coin 100 times, approximately how many times could you expect to land on tails?

• 50 times
• 100 times
• 200 times

Multiple Choice

A bag has 4 green marbles, 3 red, 2 blue and 1 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/6

• 1/9

• 1/3

Multiple Choice

The arrow is spun 15 times and landed 4 times on the section labeled Q. Which statement is true?

Multiple Choice

The bar graph shows the results of spinning the spinner 200 times. What is the experimental probability of landing on a 3?

Multiple Choice

What is the Theoretical Probability of not landing on red?

• 25%
• 50%
• 65%
• 66.7%

Multiple Choice

Theoretical Probability is?

• What Should happen
• What does happen
• What Will Happen
• What I want to Happen

Multiple Choice

Experimental Probability is:

• What Will happen 

• What actually happens

• What should happen

• What I think Happens

Multiple Choice

Change this decimal to a percent.
0.528

• 528%

• 52.8%

• 5.28%

• 52%

Multiple Choice

A standard number cube is rolled. What is the probability it lands on a number less than 3?

• 1/2

• 1/6

• 1/3

• 1/4

Multiple Choice

There are 6 boys and 8 girls in a classroom. What is the probability that the teacher randomly selects a boy?

• ⁸/₆

• ⁶/₈

• 3/7

• ⁸/₁₄

Multiple Choice

A box has 3 lime, 5 grape, and 2 orange popsicles.

P(NOT lime) =

• 7/10

• 1/2

• 3/10

• 4/10

Multiple Choice

What is the complement to $$\frac{2}{5}$$  ?

• 1/5

• 2/5

• 3/5

• 5/5

Multiple Choice

The probability of rain today is 90%. What is the complement (the probability it will not rain today)?

• 60%

• 45%

• 90%

• 10%