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Probability Recap

Authored by Matthew Goodman

Mathematics

12th Grade

Used 9+ times

Probability Recap
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16 questions

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1.

MATCH QUESTION

1 min • 1 pt

Match the symbols with their appropriate meaning and usage.

Given -- conditional

|

Intersection -- and

 ∩

Union -- or

U

2.

MATH RESPONSE QUESTION

1 min • 1 pt

Media Image

According to the two-way table, if we randomly-select a person, what is the probability that they prefer yoga? Write your answer as an unreduced fraction.

Mathematical Equivalence

ON

3.

MATH RESPONSE QUESTION

1 min • 1 pt

Media Image

According to the two-way table, if we randomly-select a person, what is the probability that they prefer Swimming? Write your answer as an unreduced fraction.

Mathematical Equivalence

ON

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

Now, let's use our answers from the previous questions:

P(Yoga) = 35/150 and P(Swimming) = 40/150

Calculate P(Yoga U Swimming)

As you saw, U means or. We use the _________ rule to find these types of probabilities.

5.

MATH RESPONSE QUESTION

1 min • 1 pt

Media Image

Now, let's use our answers from the previous questions:

P(Yoga) = 35/150 and P(Swimming) = 40/150

Calculate P(Yoga U Swimming)

Add the two probabilities together. Do NOT subtract yet.

Mathematical Equivalence

ON

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Hopefully, you found the last answer to be 75/150 by adding the two together.

Are the events Yoga and Swimming mutually exclusive?

Yes!

No!

What?

Answer explanation

Remember that mutually exclusive means the events CANNOT occur together. So, if two events are mutually exclusive, the probability of event 1 and event 2 happening at the same time is 0.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Hopefully, you found the last answer to be 75/150 by adding the two together.

Based on your answer to the last question, do we need to subtract any overlap?

Yes!

No!

What?

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