Mean, Median, Mode, and Range

Find the median of these numbers:
4,2,7,4,3

• 2

• 5

• 7

• 4

Answer explanation

To find the median, first arrange the numbers in ascending order: 2, 3, 4, 4, 7. Since there are 5 numbers, the middle number is the third one, which is 4. Therefore, the median is 4.

find the median of
20 30 40 50 60

• 50

• 40

• 1

• 5

Answer explanation

The median is the middle number when the numbers are arranged in ascending order. In this case, the median is 40 as it is the middle number in the sequence 20, 30, 40, 50, 60.

What is the mode in the set of data?
2,2,2,4,4,5,6,6,6,7

• 2

• 6

• 2 and 6

• 2,4, and 6

Answer explanation

The mode in the set of data is 2 and 6 because they are the numbers that appear most frequently, each appearing three times.

Find the mean of these numbers:
2, 57, 38, 42, 6

• 29

• 38

• 50

• 145

Answer explanation

To find the mean, add all numbers together and divide by the total count. (2+57+38+42+6)/5 = 29. Therefore, the mean is 29.

Which is the MIDDLE?

• Mean

• Median

• Mode

• Range

Answer explanation

The MIDDLE is represented by the Median, which is the middle value in a sorted list of numbers. It divides the data set into two equal parts.

Which word means "average?"

• mean

• median

• mode

• range

Answer explanation

The word 'mean' means 'average' in statistics, making it the correct choice in this context.

Which is the number that appears the MOST often?

• mean

• median

• mode

• range

Answer explanation

The number that appears the MOST often is the mode. The mode is the value that occurs most frequently in a data set.

What is the median of the following numbers? 1, 2, 2, 8, 9, 14

• 13

• 5

• 2

• 6

Answer explanation

The median is the middle number when the numbers are arranged in ascending order. In this case, the median is 5, as it is the middle number of the sorted list: 1, 2, 2, 8, 9, 14.

Find the mean of these numbers:

5,11,2,12,4,2

• 4.1

• 6

• 4.5

• 4

Answer explanation

To find the mean, add all numbers together and divide by the total count. (5+11+2+12+4+2)/6 = 36/6 = 6. Therefore, the mean is 6.

3, 4, 5, 5, 5, 6,7

The range of these numbers is ...

• 15

• 4

• 2

• 5

Answer explanation

The range of these numbers is the difference between the highest and lowest numbers, which is 7 - 3 = 4. Therefore, the correct answer is 4.