Probability and Statistics

Front

What is the range of a set of numbers?

Back

The range is the difference between the highest and lowest values in a set.

Front

How do you convert a decimal to a percent?

Back

Multiply the decimal by 100 and add a percent sign. For example, 0.02 becomes 2%.

Front

What is the median of a set of numbers?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, it is the average of the two middle numbers.

Front

What is experimental probability?

Back

Experimental probability is the ratio of the number of times an event occurs to the total number of trials.

Front

How do you calculate the experimental probability of an event?

Back

Divide the number of successful outcomes by the total number of trials.

Front

What is the formula for finding the mean of a set of numbers?

Back

Add all the numbers together and divide by the count of numbers.

Front

What is a sample in statistics?

Back

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

Front

What is the difference between population and sample?

Back

A population includes all members of a specified group, while a sample is a part of the population.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often different values occur in a dataset.

Front

What is a histogram?

Back

A histogram is a graphical representation of the frequency distribution of numerical data.