Basic Statistics Assessment

Which level of measurement includes a true zero?

• Categorical

• Ratio

In a frequency distribution, what does the relative frequency represent?

• Proportion

• Absolute Frequency

If the mean of a data set is 10 and there are 5 values, what is the total sum of the values?

• 2

• 50

Which chart is used to display the frequency of categories?

• Histogram

• Bar Chart

If a data set has values 4, 2, 8, and 6, what is the median?

• 5

• 8

If a data set consists of the numbers 1, 2, 3, 4, and 5, what is the mode?

• 1

• No mode

What is the key difference between bar charts and histograms?

• Bar charts are for qualitative data, histograms are for quantitative data

• Histograms have gaps between bars, bar charts do not

Which of the following is an example of a qualitative variable?

• Height of students

• Eye color

If the total number of students is 50 and 10 students got an ‘A’ grade, what is the percentage of students who got an ‘A’?

• 20%

• 10%

A dataset has the following five numbers: 4, 8, 6, 10, and 12. What is the relative frequency of the number 8?

• 0.2

• 0.4