Statistics Skills Assessment for Grade 11

What does the height of each bar in a bar chart represent?

• The height of each bar represents the value or quantity of the category.

• The height of each bar represents the time duration of the category.

• The height of each bar indicates the color of the category.

• The height of each bar shows the average of all categories.

Analyze the following bar chart and determine which category has the highest value.

• Category Y

• Category X

• Category Z

• Category A

If a bar chart shows the number of students in different clubs, how would you interpret the data?

• The bar chart indicates the average age of students in each club.

• The bar chart shows the distribution of students across different clubs, indicating popularity and participation levels.

• The bar chart shows the total number of students in all clubs combined.

• The bar chart represents the financial contributions of each club.

Given a bar chart, how do you find the total number of items represented?

• Total number of items is the highest value among the bars.

• Total number of items is the difference between the highest and lowest values of the bars.

• Total number of items is the average of the values of all bars.

• Total number of items is the sum of the values of all bars.

What is the significance of the x-axis and y-axis in a bar chart?

• The x-axis shows categories, and the y-axis shows values in a bar chart.

• The x-axis represents time, and the y-axis represents distance in a bar chart.

• The x-axis shows values, and the y-axis shows categories in a bar chart.

• The x-axis is used for labels, and the y-axis is used for colors in a bar chart.

If the distribution of data is skewed to the right, what can you infer about the mean and median?

• Mean > Median

• Mean is undefined

• Mean = Median

• Mean < Median

How do you determine the range of a data set from a distribution graph?

• The range is the sum of all values in the data set.

• The range is the total number of data points in the set.

• The range is the average of the maximum and minimum values.

• The range is the difference between the maximum and minimum values of the data set.

In a given bar chart, if one bar is twice the height of another, what does that indicate about their values?

• The value of the taller bar is twice the value of the shorter bar.

• The value of the taller bar is equal to the value of the shorter bar.

• The values of both bars are the same.

• The value of the shorter bar is twice the value of the taller bar.

What does it mean if two bars in a bar chart are of equal height?

• The bars are part of a stacked bar chart.

• The bars indicate a trend over time.

• The bars represent different categories.

• The categories represented by the bars have equal values.

How can you identify outliers in a data distribution?

• Use the IQR method or Z-scores to identify outliers.

• Use the mean to identify outliers.

• Count the number of data points to find outliers.

• Visualize the data with a pie chart to spot outliers.