Lesson on Simple Probability

Probability: Simple and Compound Events Review Lesson

Do Now: Measures of Center

Multiple Choice

Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8

• 3
• 5
• 1
• 2

Multiple Choice

What is the median of the following set of numbers?

(2, 24, 8, 17, 6, 88, 45)

• 24

• 17

• 45

• 8

Probability: Simple Events

Multiple Choice

What is the probability of flipping a coin and getting tails?

• 1/2
• 1/3
• 1/4
• Never, Tails never fails.

Multiple Choice

What is the probability of spinning an even number?

• 3/50

• 3/100

• 1/2

• 3/4

Multiple Choice

Find the probability of not rolling a 2 on a single die.

• 1/6
• 2/6
• 5/6
• 2

Multiple Choice

What is the probability of spinning and landing on green?

• 3/12
• 1/4
• 3/4
• 9/12

Multiple Choice

P(cereal or steak)

• 9/40

• 1/40

• 8/40

• 1/2

Multiple Choice

P(not chow mein)

• 7/8

• 1/8

• 2/7

• 5/6

Multiple Choice

Sample space is defined as...

• the likelihood of an event occurring.

• a diagram of all possible outcomes.

• the probability of an event.

• a list of all possible outcomes.

Multiple Choice

What is the sample space?

• 6 bears

• orange, green, red, white, yellow

• unlikely

• 2 red bears

Multiple Choice

What is the sample space when rolling a regular number cube?

• 1

• 2, 4, 6

• 1, 2, 3, 4, 5, 6

• 6

Multiple Choice

What is the sample space for choosing 1 jelly bean from a jar of 4 red, 7 blue, and 2 green jellybeans?

• 4, 7, and 2

• red, blue, green

• 2 green

• 4 red

Multiple Choice

The tree diagram shows the outcomes of rolling a die and flipping a coin.  
How many total outcomes are there?  

• 6
• 12
• 24
• 36

Multiple Choice

The cafeteria is serving three kinds of sandwiches: tuna (T), chicken, (C), and peanut butter (P). They are also serving a choice of two drinks: milk (M) or water (W). Which shows the CORRECT Sample Space List of possible combinations?

• TW, CW, PW

• TW, TM, TC, CW, PW

• TW, TM, CW, CM, PW, PM

• TCP, MW

Poll

Do you think you have an understanding for probability now?

• Yes!

• No!

• Sort of!