Data Handling Quizzes for Year 9 Maths: Test Your Skills

Question 1

What is the main difference between a qualitative and a quantitative variable?

Accepted Answer

Quantitative variables are numerical data, while qualitative variables are categorical data.

Answer

Qualitative variables are numerical data, while quantitative variables are categorical data.

Answer

Qualitative variables can be measured, while quantitative variables cannot.

Answer

There is no difference between qualitative and quantitative variables.

Question 2

A scatter plot can show:

Accepted Answer

The relationship between two variables.

Answer

The distribution of a single variable.

Answer

The frequency of data values.

Answer

Changes over time.

Question 3

Which measure can be used to assess the variability (spread) of a data set?

Accepted Answer

Standard deviation

Answer

Mean

Answer

Median

Answer

Mode

Question 4

What is the main purpose of using a frequency table?

Accepted Answer

To organize data into groups and count their occurrences

Answer

To display data visually using bars

Answer

To show the relationship between two variables

Answer

To predict future outcomes

Question 5

Which type of graph is most suitable for representing continuous data?

Accepted Answer

Histogram

Answer

Bar chart

Answer

Pie chart

Answer

Scatterplot

Question 6

Which of the following is a qualitative data type?

Accepted Answer

Gender

Answer

Height

Answer

Temperature

Answer

Age

Question 7

Which method involves asking people questions to collect information?

Accepted Answer

Survey

Answer

Experiment

Answer

Observation

Question 8

Which of the following is NOT a legitimate technique used to gather data?

Accepted Answer

Making assumptions

Answer

Observing

Answer

Surveying

Answer

Interviewing

Question 9

Which of these is a measure of central tendency?

Accepted Answer

Mean

Answer

Range

Answer

Standard deviation

Answer

Correlation

Question 10

What is the most suitable method for identifying relationships between two variables?

Accepted Answer

Drawing a scatterplot

Answer

Calculating the mean of each variable

Answer

Conducting a survey

Answer

Performing a hypothesis test

Question 11

What does the gradient of a line graph represent?

Accepted Answer

Rate of change

Answer

Y-intercept

Answer

Correlation coefficient

Answer

Standard deviation

Question 12

Which measure of the center of a data set is most easily affected by extreme values (outliers)?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Answer

Range

Question 13

What is a data collection sheet used for?

Accepted Answer

To write down data in an organized way

Answer

To analyze data using statistics

Answer

To draw graphs and charts

Answer

To keep data safe and secure

Question 14

What's the main difference between a qualitative and a quantitative variable?

Accepted Answer

Quantitative variables can be measured as numbers, while qualitative variables cannot

Answer

Qualitative variables use numbers, while quantitative variables do not

Answer

Qualitative variables are more subjective, while quantitative variables are more objective

Answer

There is no difference between qualitative and quantitative variables

Question 15

In data collection, what's the key difference between a population and a sample?

Accepted Answer

A population is the entire group being studied, while a sample is a smaller group representing the population.

Answer

A sample is the entire group being studied, while a population is a smaller group representing the sample.

Answer

A population is a group with a shared characteristic, while a sample is a group without a shared characteristic.

Question 16

When creating a frequency table, what does the relative frequency represent?

Accepted Answer

The fraction or percentage of data points in each interval.

Answer

The number of data points that fall into each interval.

Answer

The range of data values in each interval.

Question 17

Which of the following is a disadvantage of using questionnaires for data collection?

Accepted Answer

Low response rate.

Answer

Ease of administration.

Answer

Flexibility in question design.

Answer

Ability to collect both qualitative and quantitative data.

Question 18

A school wants to find out the most popular lunch option. Which data collection method is best for this?

Accepted Answer

Questionnaire

Answer

Observation

Answer

Interview

Answer

Experiment

Question 19

Students counted the number of cars passing by a certain spot for an hour. What kind of data did they collect?

Accepted Answer

Discrete data

Answer

Continuous data

Answer

Categorical data

Answer

Qualitative data

Question 20

Which of these is NOT a good way to show the number of students in each year group at a school?

Accepted Answer

Line graph

Answer

Pie chart

Answer

Bar chart

Answer

Table

Question 21

A bar chart shows how many goals a football team scored in each match. What type of data is shown?

Accepted Answer

Discrete data

Answer

Categorical data

Answer

Qualitative data

Answer

Continuous data

Question 22

The average height of students in a class is 155cm. What type of data is this?

Accepted Answer

Continuous data

Answer

Discrete data

Answer

Qualitative data

Answer

Categorical data

Question 23

A pie chart shows the percentage of students who chose different sports for their PE lessons. What is the total percentage shown by the pie chart?

Accepted Answer

100%

Answer

150%

Answer

75%

Answer

50%

Question 24

A line graph shows the temperature in a city over a week. What does the steepness of the line tell us?

Accepted Answer

How quickly the temperature is changing

Answer

The average temperature for the week

Answer

The total temperature change over the week

Question 25

A survey asks people to rate their satisfaction with a product on a scale of 1 to 5 (1 being 'very dissatisfied' and 5 being 'very satisfied'). What type of data is collected?

Accepted Answer

Ordinal data

Answer

Nominal data

Answer

Ratio data

Answer

Interval data

Question 26

A table shows the number of boys and girls in each year group at a school. What kind of data is this?

Accepted Answer

Categorical data

Answer

Ordinal data

Answer

Continuous data

Answer

Discrete data

Question 27

A scatter graph shows the relationship between how many hours students study and their test scores. What can you say if the points on the graph show a positive trend?

Accepted Answer

As study time increases, test scores tend to go up.

Answer

As study time increases, test scores tend to go down.

Answer

There is no relationship between study time and test scores.

Question 28

A researcher wants to find out which sports students in a school like the most. What's the best way to collect this information?

Accepted Answer

Survey

Answer

Simulation

Answer

Observation

Answer

Experiment

Question 29

A table shows how many cars pass a certain point on a road each hour. This type of data is called:

Accepted Answer

Discrete

Answer

Categorical

Answer

Qualitative

Answer

Continuous

Question 30

Which of these is NOT a good way to show how many students are in each year group at a school?

Accepted Answer

Line Graph

Answer

Pictogram

Answer

Pie Chart

Answer

Bar Chart

Question 31

A pie chart shows that 25% of a class likes football, 30% like basketball, and 45% like swimming. If there are 20 students in the class, how many students prefer swimming?

Accepted Answer

9

Answer

5

Answer

6

Answer

10

Question 32

A bar chart shows how many books were borrowed from a library each day for a week.  Which day had the most books borrowed?

Accepted Answer

The day with the tallest bar

Answer

The day with the bar in the middle

Answer

The day with the shortest bar

Answer

The day with the bar closest to the left

Question 33

A line graph shows the temperature of a city over 24 hours. What does the steepness of the line tell us?

Accepted Answer

How quickly the temperature is changing

Answer

The highest temperature

Answer

The lowest temperature

Answer

The average temperature

Question 34

Which of these is an example of data that someone else has already collected?

Accepted Answer

A weather report from a website

Answer

A survey conducted by a student

Answer

An observation of traffic flow

Answer

An experiment on plant growth

Question 35

What is the main purpose of a frequency table?

Accepted Answer

To organize and summarize data

Answer

To calculate the average of a dataset

Answer

To collect data from a population

Answer

To represent data visually

Question 36

These numbers show how many points a team scored in each game: 1, 2, 2, 3, 4, 5, 5, 5. What is the most common score?

Accepted Answer

5

Answer

4

Answer

3

Answer

2

Question 37

Which of these is most affected by extreme values (outliers) in a set of numbers?

Accepted Answer

Mean

Answer

Median

Answer

Range

Answer

Mode

Question 38

A group of students recorded the number of cars passing a certain point on a road each minute for 15 minutes. What is the best way to represent this data?

Accepted Answer

Line graph

Answer

Tally chart

Answer

Pie chart

Answer

Bar chart

Question 39

Which of the following is NOT a method of collecting primary data?

Accepted Answer

Reading government statistics

Answer

Observing and recording data

Answer

Conducting a survey

Answer

Carrying out an experiment

Question 40

The heights (in cm) of five students are: 150, 155, 160, 160, 165. What is the mode height?

Accepted Answer

160 cm

Answer

155 cm

Answer

162.5 cm

Question 41

Which type of chart is best for displaying data about the distribution of eye colour in a class?

Accepted Answer

Pie chart

Answer

Line graph

Answer

Scatter graph

Question 42

A survey asks students about their favourite sport. Which data representation would be LEAST effective for displaying the results?

Accepted Answer

Line graph

Answer

Pie chart

Answer

Bar chart

Answer

Pictogram

Question 43

What is the range of the following data set: 5, 12, 8, 15, 6, 11?

Accepted Answer

10

Answer

5

Answer

9

Question 44

A scatter graph shows a positive correlation between two variables. What does this mean?

Accepted Answer

As one variable increases, the other variable tends to increase.

Answer

The two variables are not related.

Answer

As one variable increases, the other variable tends to decrease.

Question 45

A researcher wants to find out the average height of 13-year-olds in the UK. What would be the most appropriate sample for this study?

Accepted Answer

A random selection of 13-year-olds from across the UK

Answer

The tallest 100 students in a certain city

Answer

All the students in a Year 9 class in one school

Question 46

Which of the following is a disadvantage of using a pictogram to represent data?

Accepted Answer

It can be difficult to represent exact values.

Answer

It cannot be used to show trends over time.

Answer

It is not visually appealing.

Answer

It is only suitable for small data sets.