7th Grade Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, or as a percentage.

Front

What is the formula for calculating the probability of an event?

Back

P(Event) = (Number of favorable outcomes) / (Total number of possible outcomes)

Front

If a spinner has 4 equal sections, what is the probability of landing on any one section?

Back

P(section) = 1/4 or 25%.

Front

How many outcomes are there when rolling a 6-sided die?

Back

There are 6 possible outcomes: 1, 2, 3, 4, 5, or 6.

Front

What is the probability of rolling a number greater than 3 on a 6-sided die?

Back

P(greater than 3) = 3/6 = 50%.

Front

If you have 3 colors of yarn and 2 patterns, how many combinations can you create?

Back

You can create 3 colors x 2 patterns = 6 combinations.

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

What is the probability of picking a red card from a standard deck of cards?

Back

P(red card) = 26/52 = 50%.

Front

If you spin a spinner with 5 colors, what is the probability of landing on blue?

Back

P(blue) = 1/5 or 20%.

Front

What is the total number of outcomes when flipping a coin twice?

Back

There are 4 outcomes: HH, HT, TH, TT.