SP1 Unit Review

Front

What is the median?

Back

The median is the middle value in a list of numbers sorted in ascending order. For example, in the set {58, 60, 62, 66}, the median is 62.

Front

What value is Q1?

Back

Q1, or the first quartile, is the median of the lower half of a data set. In the example given, Q1 is 60.

Front

What is the range of the data?

Back

The range is the difference between the highest and lowest values in a data set. For example, if the highest value is 66 and the lowest is 58, the range is 66 - 58 = 8.

Front

How many total students were surveyed about their number of brothers and sisters?

Back

To find the total, add up all the data points. In this case, the total is 15.

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 this case, the IQR is 4.

Front

What is a data set?

Back

A data set is a collection of related data points or values, often organized in a table or list.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts. The first quartile (Q1) is the median of the lower half, the second quartile (Q2) is the median, and the third quartile (Q3) is the median of the upper half.

Front

How do you calculate the mean?

Back

To calculate the mean, add all the numbers in a data set and then divide by the total number 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 within certain ranges.

Front

What is a mode?

Back

The mode is the value that appears most frequently in a data set. For example, in the set {1, 2, 2, 3}, the mode is 2.