Basic Probability

How many outcomes are in the sample space for tossing one coin?

• 1

• 2

• 4

• 8

Which of the following are possible samples spaces for tossing 2 coins? (May be more than one correct answer)

• {H, T, H, T}

• {HH, HT, TH, TT}

• {H, T}

• {T, H}

• {TT, HH, TH, HT}

You give the answer to a probability problem as 6/5. The teacher marks it wrong. Why?

• It should have been 5/6.

• Its not written as a percent.

• Its more than 1.

• Its not written as a decimal.

Which of these cannot be considered a probability of an outcome?

• 1/3

• -1/5

• 0.80

• 112%

• 1

Tags

CCSS.7.SP.C.5

Roll a die one time. Find P(rolling a 4).

• 1/4

• 2/3

• 1/6

• 1/2

Tags

CCSS.7.SP.C.7A

Roll a die one time. Find P(even number).

• 1/2

• 1/3

• 3/6

• 2/6

Tags

CCSS.7.SP.C.7B

Roll a die one time. Find P(a number less than 7).

• 0

• 1

• 7/6

• 1/6

Tags

CCSS.7.SP.C.7A

Roll a die one time. Find P(a number greater than 3 or odd).

• 0

• 1/2

• 5/6

• 1/6

Tags

CCSS.HSS.CP.B.7

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

Tags

CCSS.7.SP.C.7B