Tuesday Y11 Probability

​Write down the date and Title:
Probability Tree diagrams

By Aanbar Mohammed

Multiple Choice

Probability is ____________.

• the chance that some event will occur

• a game that involves coins.

• a guarantee.

Multiple Choice

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?

• 1/6

• 5/6

• 1/3

• 1/2

Multiple Choice

What percentage of girls have blonde hair?

• 30%
• 32%
• 29%
• 40%

Multiple Choice

In a survey, if 20 out of 100 participants prefer sci-fi movies, what is the relative frequency?

• 0.10 or 10%

• 0.15 or 15%

• 0.20 or 20%

• 0.25 or 25%

Multiple Choice

Kate spun the spinner 75 times and landed on "3" thirty times.

What is the experimental probability as a percentage?

• 20%

• 30%

• 40%

• 50%

Multiple Choice

The spinner was spun 30 times and landed on blue 12 times. What was the experimental probability of the spinner landing on colors that were not blue?

• 2/5

• 3/5

• 4/5

• 1/5

Multiple Choice

Two dice are rolled and it is recorded whether the result on each is odd or even. What is the probability both are odd?

• 1/4

• 1/2

• 2/4

• 3/4

Multiple Choice

There are 10 counters in a bag, 3 red and 7 blue.

I take one counter, then another without replacement.

Find the probability of the value marked x

• ⁷/₁₀

• ³/₁₀

• ⁶/₉

• ²/₉

Multiple Choice

Two dice are rolled and it is recorded whether the result on each is odd or even. What is the probability both are odd?

• 1/4

• 1/2

• 2/4

• 3/4

Multiple Choice

There are 10 counters in a bag, 3 red and 7 blue.

I take one counter, then another without replacement.

Find the probability of the value marked x

• ⁷/₁₀

• ³/₁₀

• ⁶/₉

• ²/₉