Gr10 Math Lit: Term test 4

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What is the purpose of calculating measures of central tendency and spread?

To compare parts of a whole

To display data that is compared across categories

To identify patterns in the data (correct)

To make decisions based on the data

What is the formula for calculating the mean of a set of values?

$\sum \text{Values} - \text{Number of Values}$

$\frac{\text{Highest Value} - \text{Lowest Value}}{\text{Number of Values}}$

$\frac{\sum \text{Values}}{\text{Number of Values}}$ (correct)

$\text{Highest Value} + \text{Lowest Value}$

What is the median of a set of data with an even number of values?

The average of the two middle values (correct)

The sum of the two middle values

The lowest value in the data set

The highest value in the data set

What type of graph is used to compare parts of a whole?

Pie chart Signup and view all the answers

What type of graph is used to display continuous data grouped into intervals?

Histogram Signup and view all the answers

What is the range of a data set?

The difference between the highest and lowest values Signup and view all the answers

What is the primary goal of data analysis?

To make decisions based on the information Signup and view all the answers

Which measure of central tendency is most affected by extremely high or low values?

Mean Signup and view all the answers

What is the primary difference between a bar graph and a histogram?

The type of data being represented Signup and view all the answers

When would you use a line graph to represent data?

To show changes over time or relationships between two quantities Signup and view all the answers

What does the range of a dataset represent?

The difference between the highest and lowest values Signup and view all the answers

Why is it important to calculate measures of central tendency and spread?

To identify trends and patterns in the data Signup and view all the answers

What is the primary advantage of using graphical representation in data analysis?

To facilitate comparison and identification of trends and patterns in data Signup and view all the answers

Which of the following is an important consideration when choosing a graph type?

The nature of the data being represented Signup and view all the answers

What is the primary difference between a measure of central tendency and a measure of spread?

Measures of central tendency describe the middle of the data, while measures of spread describe the variability Signup and view all the answers

In which situation would a histogram be a poor choice of graph?

When comparing categorical data across groups Signup and view all the answers

What is the primary goal of data analysis, after gathering and representing data?

To identify trends and patterns in the data Signup and view all the answers

Why is it important to consider both measures of central tendency and spread when analyzing data?

To get a more accurate picture of the data's distribution Signup and view all the answers