Statistic Year 9 2024

Which type of graph is best for showing parts of a whole?

• Line Graph

• Bar Graph

• Pie Graph

• Scatter Plot

What does the height of a bar in a bar graph represent?

• The category

• The frequency or value

• The x-axis label

• The overall trend

If a pie graph shows that 25% of students prefer apples, how many students is this if there are 200 students in total?

• 50

• 25

• 75

• 100

In a line graph, what is typically shown on the x-axis?

• Time or categories

• The dependent variable

• Percentages

• The mean

Which of the following is not a feature of a histogram?

• Bars touch each other

• Used for continuous data

• Bars are separate from each other

• Shows frequency distribution

What is the median in a dot plot?

• The most frequent dot

• The dot in the middle of the data set when ordered

• The highest dot

• • The sum of all dots

A scatter plot shows a cluster of points at the top right and bottom left. What type of correlation is this?

• Positive Correlation

• Negative Correlation

• No Correlation

• Perfect Correlation

What unusual feature might you look for in a scatter plot?

• A strong positive trend

• A negative trend

• Outliers that don't fit the overall pattern

• Consistent data points

Which measure of spread is calculated by subtracting the smallest value from the largest value?

• Range

• Median

• Mean

• Mode

Which measure of centre is the sum of all values divided by the number of values?

• Median

• Mode

• Mean

• Range