Finding the Mean Quiz

What is another term for the mean in statistics?

• Median

• Mode

• Average

• Range

Answer explanation

The correct term for the mean in statistics is 'Average'. It is calculated by summing all values and dividing by the total number of values.

Tags

CCSS.6.SP.B.5C

How do you calculate the mean of a data set?

• Add all numbers and multiply by the number of numbers

• Subtract all numbers and divide by the number of numbers

• Add all numbers and divide by the number of numbers

• Divide all numbers and add by the number of numbers

Answer explanation

To calculate the mean of a data set, you add all numbers together and then divide by the total number of numbers in the set.

Tags

CCSS.6.SP.B.5C

In the first example, what is the mean of the data set with numbers 2, 4, 4, 5, 5?

• 6

• 5

• 3

• 4

Answer explanation

The mean is calculated by adding all numbers together and dividing by the total count. (2+4+4+5+5)/5 = 20/5 = 4, so the mean is 4. If there is frequency need to multiply by frequency and divide by the total frequency.

Tags

CCSS.6.SP.B.5C

In the second example, what is the mean of the data set with numbers 58, 58, 61, 68, 72, 73, 77, 81?

• 65

• 68

• 75

• 70

Answer explanation

The mean is calculated by adding all numbers together and dividing by the total count. (58+58+61+68+72+73+77+81)/8 = 548/8 = 68. Therefore, the mean is 68.

Tags

CCSS.6.SP.B.5C

What is the sum of the numbers in the first example data set?

• 22

• 20

• 18

• 15

Answer explanation

The sum of the numbers in the first example data set is 20, which is the correct answer choice provided.

Tags

CCSS.6.SP.B.5A

How many numbers are there in the second example data set?

• 6

• 7

• 8

• 9

Answer explanation

The correct answer is 8 because there are 8 numbers in the second example data set.

Tags

CCSS.6.SP.B.5A