Statistics - Measures of Central Tendency

The ____________ is the measure of central tendency that represents the middle number in a set of data.

• Mode

• Average

• Principal

• Median

The number that appears the most in a data set is commonly known as the ___________.

• Mean

• Range

• Mode

• Average

The ______________ can be found by subtracting the lower extreme from the upper extreme.

• Range

• Median

• Mean

• Rate

How do we find the median when there are exactly TWO numbers in the middle of the data set?

• We add up all of the numbers and divide by the number of numbers.

• Subtract the lower extreme from the upper extreme.

• Add the two numbers together and divide the sum by 2.

• Use the formula I = P x r x t

The following numbers were the result of data collected when students were asked how many pets they had in there home:

0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 6

What is the range of the data?

• 1.9

• 6

• 5

• 2

It is the number that has the highest frequency.

• Mode

• Mean

• Median

What is the average height of the following students whose height are 6.5, 5.3, 3.4, 4, and 5.5?

• 4.82

• 5.93

• 4.94

• 4.52

What is the median age of a group of employees whose ages are 32, 37, 30, 43, 29 and 31?

• 30

• 31

• 31.5

• 30.5

Which measure of central tendency is greatly affected by extreme scores?

• Mode

• Median

• Mean

• none of these

Jade has grades of 91 and 90 in Math. What grade must she obtain on the third quarter to get an average of 91?

• 90

• 91

• 92

• 93