Measures of Central Tendency-Cook Math 6th 19-20

Front

What is the range of a set of numbers?

Back

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

Front

What is the mode in a data set?

Back

The mode is the number that occurs most frequently in a data set.

Front

How do you find the mode of the following numbers: {12, 10, 10, 10, 13, 12, 11, 13, 10}?

Back

The mode is 10, as it appears most often.

Front

What is the median of the following set of numbers: 34, 98, 12, 45, 61, 73?

Back

To find the median, first arrange the numbers in order: 12, 34, 45, 61, 73, 98. The median is the average of the two middle numbers (45 and 61), which is 53.

Front

How do you calculate the range of the heights: 158cm, 172cm, 164cm, 164cm, 167cm, 159cm?

Back

The range is 172cm - 158cm = 14cm.

Front

What is the first step in finding the median of a data set?

Back

The first step is to arrange the numbers in ascending order.

Front

If a data set has no repeating numbers, what can you say about the mode?

Back

If there are no repeating numbers, the data set has no mode.

Front

What is the difference between mean and median?

Back

The mean is the average of all numbers, while the median is the middle value when numbers are arranged in order.

Front

How do you find the mean of the numbers: 10, 20, 30, 40?

Back

Add the numbers (10 + 20 + 30 + 40 = 100) and divide by the number of values (4). The mean is 25.

Front

What does it mean if a data set is skewed?

Back

A skewed data set has a tail on one side, indicating that the mean and median are not equal.