Data Handling in Grade 7

What is the mean of the following data set: 10, 15, 20, 25, 30?

• 27

• 20

• 22

• 18

Define the term 'mode' in statistics.

• The mode is the middle value in a data set.

• The mode is the average of a data set.

• The mode is the highest value in a data set.

• The mode in statistics refers to the value that appears most frequently in a data set.

If a student scored 85, 90, 92, 88, and 95 on five tests, what is their median score?

• 90

• 88

• 85

• 92

Calculate the range of the data set: 5, 10, 15, 20, 25, 30.

• 25

• 10

• 35

• 18

What is the formula to calculate the mean of a data set?

• Mean = (Sum of all values) + (Total number of values)

• Mean = (Sum of all values) * (Total number of values)

• Mean = (Sum of all values) - (Total number of values)

• Mean = (Sum of all values) / (Total number of values)

If the mode of a data set is 12, how many times does 12 appear in the data set?

• The number 12 appears in the data set as many times as it takes to be the mode.

• 12 is not present in the data set.

• 12 appears in the data set once.

• The number 12 appears in the data set 10 times.

Calculate the mean of the data set: 12, 15, 18, 21, 24, 27.

• 17.83

• 23.75

• 20.25

• 16.5

If the median of a data set is 20, how many data points are above and below 20?

• Same number of data points above and below 20

• More data points above than below 20

• Less data points above than below 20

• No data points above or below 20

The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?

• 99 was the highest score on the test.
• More students received a 94 than any other score
• No student scored below a 50
• A score of 91 was slightly below average.

The difference between the highest and the lowest value of the observations in a data is called:

• Sum of observation

• Total frequency

• Mean

• Range

• Median