U7 Statistics SAT Questions

Front

What is a statistic?

Back

A statistic is a numerical value that summarizes or describes a characteristic of a sample.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample is a subset of the population used to represent the whole.

Front

Define mean in statistics.

Back

The mean is the average of a set of numbers, calculated by adding all the values and dividing by the number of values.

Front

What is median?

Back

The median is the middle value in a data set when the numbers are arranged in order.

Front

Explain mode in statistics.

Back

The mode is the value that appears most frequently in a data set.

Front

What is a range in statistics?

Back

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

Front

Define standard deviation.

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points in specified ranges.

Front

Explain the concept of probability.

Back

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

Front

What is a normal distribution?

Back

A normal distribution is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.