Statistics Review

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What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Tags

CCSS.6.SP.B.5C

Front

How do you calculate the mean of a set of numbers?

Back

To calculate the mean, add all the numbers together and then divide by the total count of numbers.

Tags

CCSS.6.SP.B.5C

Front

What is a biased sample?

Back

A biased sample is a sample that does not accurately represent the population from which it is drawn, leading to skewed results.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is an unbiased sample?

Back

An unbiased sample is a sample that accurately represents the population, allowing for valid conclusions to be drawn.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set, representing the range of the middle 50% of the data.

Tags

CCSS.6.SP.B.5C

Front

What is a survey in statistics?

Back

A survey is a method of collecting data by asking people questions to gather information about their opinions, behaviors, or characteristics.

Tags

CCSS.6.SP.B.5B

Front

What is the purpose of conducting a survey?

Back

The purpose of conducting a survey is to gather information and insights from a group of people to understand trends, preferences, or behaviors.

Tags

CCSS.6.SP.B.5B

Front

What does it mean to interview every 30th student?

Back

It means selecting every 30th student from a list or a queue to participate in a survey, which helps in obtaining a random sample.

Tags

CCSS.7.SP.A.2

Front

What is a data set?

Back

A data set is a collection of related data points or values that can be analyzed to extract meaningful information.

Tags

CCSS.6.SP.B.5A

Front

What is the range of a data set?

Back

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

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1