7th Grade Data and Statistics

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is a fair coin?

Back

A fair coin is one that has an equal chance of landing on heads or tails, meaning the probability of each outcome is 1/2.

Front

How do you calculate the probability of multiple independent events?

Back

To find the probability of multiple independent events occurring, multiply the probabilities of each individual event.

Front

What is a median in statistics?

Back

The median is the middle value in a list of numbers sorted in ascending order. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the median of a set of scores?

Back

1. Arrange the scores in ascending order. 2. If the number of scores is odd, the median is the middle score. If even, it is the average of the two middle scores.

Front

What is a spinner in probability?

Back

A spinner is a circular object divided into sections, each representing a different outcome. The probability of landing on a section is based on its size relative to the whole.

Front

How do you express probability as a percentage?

Back

To express probability as a percentage, multiply the probability (a fraction or decimal) by 100.

Front

What is a sample in statistics?

Back

A sample is a subset of a population used to represent the whole population in statistical analysis.

Front

What does it mean if a sample is representative?

Back

A representative sample accurately reflects the characteristics of the larger population from which it is drawn.

Front

How do you calculate the percentage of a sample?

Back

To calculate the percentage of a sample, divide the number of favorable outcomes by the total number of outcomes, then multiply by 100.