Data Analysis for Sixth Grade: Interactive Quizzes and Practice

Question 1

What is the difference between a categorical variable and a numerical variable?

Accepted Answer

Numerical variables are in number form, while categorical variables are not.

Answer

Categorical variables are in number form, while numerical variables are not.

Answer

Categorical variables are in groups, while numerical variables are continuous.

Answer

Numerical variables are in groups, while categorical variables are continuous.

Question 2

Which of these is an example of a biased data collection method?

Accepted Answer

Convenience sampling

Answer

Random sampling

Answer

Stratified sampling

Answer

Cluster sampling

Question 3

Which of these is NOT a way to show data?

Accepted Answer

Story

Answer

Table

Answer

Graph

Answer

Diagram

Question 4

What is the difference between a population and a sample?

Accepted Answer

A population is the whole group, while a sample is a smaller part of the group.

Answer

A sample is the whole group, while a population is a smaller part of the group.

Answer

A population is the average of a sample, while a sample is the average of a population.

Answer

A sample is the median of a population, while a population is the median of a sample.

Question 5

Which of these is NOT a measure of central tendency?

Accepted Answer

Range

Answer

Mean

Answer

Median

Answer

Mode

Question 6

What is the main purpose of a bar graph?

Accepted Answer

To compare different categories of data

Answer

To show the spread of data

Answer

To show trends over time

Answer

To show relationships between variables

Question 7

Which measure of central tendency is most easily affected by extreme values?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Answer

Range

Question 8

Which of the following is NOT a type of graphical data display?

Accepted Answer

Spreadsheet

Answer

Bar graph

Answer

Line graph

Answer

Pie chart

Question 9

A line graph shows the temperature over time. Which variable is the independent variable in this graph?

Accepted Answer

Time

Answer

Temperature

Answer

Day of the Week

Answer

Location

Question 10

In a pie chart, the size of each slice indicates the

Accepted Answer

Percentage of the whole

Answer

Number of items

Answer

Average value

Answer

Range of values

Question 11

Which of the following is a measure of the middle value of a data set?

Accepted Answer

Median

Answer

Mean

Answer

Mode

Answer

Range

Question 12

What is a variable in a data set?

Accepted Answer

A characteristic of the data being collected

Answer

A value that represents a specific data point

Answer

A category that data can be grouped into

Answer

A graph that displays the data

Question 13

What does the median of a data set represent?

Accepted Answer

The middle value of the data set

Answer

The average of all the values in the data set

Answer

The most frequently occurring value in the data set

Answer

The difference between the highest and lowest values in the data set

Question 14

Which statistical measure is used to describe the spread of a data set?

Accepted Answer

Standard deviation

Answer

Mean

Answer

Median

Answer

Range

Question 15

What information does a box plot provide?

Accepted Answer

The minimum, maximum, median, and quartiles of a data set

Answer

The mean, mode, and standard deviation of a data set

Answer

The frequency of different values in a data set

Answer

The relationship between two variables

Question 16

To show trends over time, which type of graph is ideal?

Accepted Answer

Line graph

Answer

Bar chart

Answer

Circle graph

Answer

Dot plot

Question 17

Which measure of central tendency is easily swayed by extreme values?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Answer

Range

Question 18

What is the purpose of a scatter plot?

Accepted Answer

To show how two different factors are linked

Answer

To compare the values of two variables

Answer

To show how a single variable is distributed

Answer

To predict the value of one variable based on the other

Question 19

Find the range of a dataset with a minimum value of 5 and a maximum value of 15?

Accepted Answer

10

Answer

5

Answer

15

Answer

20

Question 20

Which of the following is a non-numerical variable?

Accepted Answer

Gender

Answer

Age

Answer

Height

Answer

Income

Question 21

What is the middle value of the following dataset: 5, 7, 9, 11, 13?

Accepted Answer

9

Answer

6

Answer

10

Answer

11

Question 22

Which of these topics is NOT part of our data analysis unit?

Accepted Answer

Trigonometric Functions

Answer

Data Collection Methods

Answer

Organizing and Displaying Data

Answer

Interpreting Data

Question 23

What is the main reason for using a frequency polygon?

Accepted Answer

To show how often different values appear in a data set

Answer

To show how data changes over time

Answer

To compare different sets of data

Question 24

Which of the following is NOT a way to gather information for data analysis?

Accepted Answer

Making assumptions

Answer

Conducting surveys

Answer

Performing interviews

Answer

Conducting experiments

Question 25

What is the first step in organizing data for analysis?

Accepted Answer

Sort the data

Answer

Create a frequency table

Answer

Draw a graph

Answer

Calculate the mean

Question 26

Which type of graph is suitable for showing the distribution of data?

Accepted Answer

Histogram

Answer

Bar graph

Answer

Line graph

Answer

Pie chart

Question 27

What does the mean of a data set represent?

Accepted Answer

The total of all values divided by the number of values

Answer

The most common value

Answer

The difference between the highest and lowest values

Answer

The median value

Question 28

Which of the following is a valid conclusion that can be drawn from a data analysis?

Accepted Answer

The data may support a certain hypothesis

Answer

The data proves a certain hypothesis

Answer

The data is completely free of bias

Answer

The data is not valid

Question 29

What is the primary purpose of a scatter plot?

Accepted Answer

To show the relationship between two variables

Answer

To compare the means of two data sets

Answer

To display the distribution of a data set

Answer

To calculate the standard deviation

Question 30

How are a population and a sample different?

Accepted Answer

A population is the entire group of interest, while a sample is a smaller group that represents the population

Answer

A sample is the entire group of interest, while a population is a smaller group that represents the sample

Answer

There is no difference between a population and a sample

Answer

A population is the mean of a data set, while a sample is the median

Question 31

What type of data display is most appropriate for showing changes over time?

Accepted Answer

Line graph

Answer

Bar graph

Answer

Scatter plot

Answer

Pie chart

Question 32

Which measure of central tendency represents the average of all the values in a data set?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Question 33

Outliers are data points that:

Accepted Answer

Can provide valuable information.

Answer

Are always extreme values.

Answer

Should always be removed from a data set.

Answer

Never represent real data values.

Question 34

What does the slope of a line graph represent?

Accepted Answer

The steepness of the line.

Answer

The y-intercept.

Answer

The x-intercept.

Answer

The length of the line.

Question 35

A population is:

Accepted Answer

The entire group of individuals or data points being studied.

Answer

A subset of the population being studied.

Answer

Always larger than a sample.

Answer

Always representative of the sample.

Question 36

What is NOT a step in the data analysis process?

Accepted Answer

Drawing conclusions without collecting data

Answer

Organizing data

Answer

Collecting data

Answer

Displaying data

Question 37

Which graph is most suitable for showing trends over time?

Accepted Answer

Line graph

Answer

Pie chart

Answer

Scatterplot

Answer

Bar graph

Question 38

A store wants to see the relationship between product price and sales. Which graph is most appropriate?

Accepted Answer

Scatterplot

Answer

Bar graph

Answer

Pie chart

Answer

Line graph

Question 39

A school is planning a field trip. Students voted for their favorite destination: 25% chose the zoo, 35% chose the museum, and 40% chose the amusement park. Which place got the most votes?

Accepted Answer

Amusement Park

Answer

Zoo

Answer

They all got the same number of votes

Answer

Museum

Question 40

A group of friends tracked how many minutes they read each day for a week. What's the best way to organize this information?

Accepted Answer

Table

Answer

Line graph

Answer

Pie chart

Answer

Bar graph

Question 41

A student wants to find out how many hours of sleep their classmates get each night. What's the best way to gather this information?

Accepted Answer

Survey

Answer

Observation

Answer

Interview

Answer

Experiment

Question 42

A school sold raffle tickets for a fundraiser. They sold 100 tickets on Monday, 150 on Tuesday, and 200 on Wednesday. How many more tickets did they sell on Wednesday than on Monday?

Accepted Answer

100

Answer

150

Answer

50

Answer

200

Question 43

What is the first step in the data analysis process?

Accepted Answer

Collecting data

Answer

Drawing conclusions

Answer

Displaying data

Answer

Organizing data

Question 44

Which type of graph is best for showing how something changes over time?

Accepted Answer

Line graph

Answer

Bar graph

Answer

Pie chart

Answer

Scatter plot

Question 45

What do you get when you add up all the numbers in a data set and then divide by the number of values?

Accepted Answer

Mean

Answer

Median

Answer

Range

Answer

Mode

Question 46

What is the difference between the biggest number and the smallest number in a data set?

Accepted Answer

Range

Answer

Median

Answer

Mode

Answer

Mean

Question 47

What kind of table helps us organize data by showing how often each value appears?

Accepted Answer

Frequency table

Answer

Bar graph

Answer

Scatter plot

Question 48

Which of these things can be measured in a way that can have lots of different values?

Accepted Answer

Height

Answer

Eye color

Answer

Gender

Answer

Favorite subject

Question 49

Look at this table:

| Fruit | Number of Students Who Like It |
|---|---|---|Fruits| 12
| Bananas | 7
| Apples | 10

What can we say for sure based on this data?

Accepted Answer

More students like apples than bananas.

Answer

More students like bananas than fruits.

Answer

The number of students who like apples is equal to the number of students who like bananas.

Question 50

What is a problem with using a bar graph to show data?

Accepted Answer

It can be hard to compare data when the bars are really close together.

Answer

You can't show negative numbers on a bar graph.

Answer

It's hard to make a bar graph with a lot of data.

Question 51

What is it important to do before collecting information from people?

Accepted Answer

Get their permission

Answer

Share the data with other researchers without their permission

Answer

Use the data to treat people unfairly

Answer

Use the data to make money

Question 52

How can we make sure that our data is more reliable?

Accepted Answer

Get information from many different places

Answer

Don't let people look at their own information

Answer

Use methods that favor certain outcomes

Answer

Ignore any numbers that don't fit the pattern