Measures of Center and Spread

Front

What is the mode in a data set?

Back

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

Tags

CCSS.6.SP.B.5C

Front

How do you find the median of a data set?

Back

To find the median, arrange the data in ascending order and identify the middle value. If there is an even number of values, the median is the average of the two middle values.

Tags

CCSS.6.SP.B.5C

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of a data set.

Tags

CCSS.6.SP.B.5C

Front

What is the second quartile (Q2)?

Back

The second quartile (Q2) is the median of the entire data set.

Tags

CCSS.6.SP.B.5C

Front

What is the third quartile (Q3)?

Back

The third quartile (Q3) is the median of the upper half of a data set.

Tags

CCSS.6.SP.B.5C

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1). It measures the spread of the middle 50% of the data.

Tags

CCSS.6.SP.B.5C

Front

If the data set is 3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7, what is the median?

Back

The median is 7.

Tags

CCSS.6.SP.B.5C

Front

What does it mean if a data set has a mode of 94?

Back

It means that more students received a score of 94 than any other score.

Tags

CCSS.6.SP.B.5C

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the values together and divide by the number of values.

Tags

CCSS.6.SP.B.5C

Front

What is a data set?

Back

A data set is a collection of related values or observations.

Tags

CCSS.6.SP.B.5A