Data Analysis for Year 2 Computing: Learn to Analyze and Interpret Data

Question 1

When we look at a graph to analyze data, what are we looking for?

Accepted Answer

Patterns and trends

Answer

Unusual or surprising information

Answer

The correct answer is not in the options

Answer

Personal stories

Question 2

What is a pattern in data?

Accepted Answer

Something that happens again and again in the same way

Answer

Something that is different every time

Answer

Something that is unpredictable

Answer

Something that changes all the time

Question 3

Why do we use graphs to show data?

Accepted Answer

To make it easier to understand and compare data

Answer

To hide important information

Answer

To make data look more complicated

Answer

To make data more colorful

Question 4

Which of these is NOT a way to clean data?

Accepted Answer

Adding more data

Answer

Removing duplicate data

Answer

Correcting errors in data

Answer

Filling in missing data

Question 5

Why do we organize data?

Accepted Answer

To make it easier to analyze and understand

Answer

To make it look more organized

Answer

To hide important information

Answer

To make it more difficult to understand

Question 6

What is the difference between mean and median?

Accepted Answer

Mean is the average of all the data, while median is the middle value.

Answer

Median is the average of all the data, while mean is the middle value.

Answer

Mean is the most common value, while median is the average of all the data.

Answer

Median is the most common value, while mean is the middle value.

Question 7

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

Accepted Answer

Line graph

Answer

Bar graph

Answer

Scatter plot

Question 8

Which graph type shows the change in temperature over time?

Accepted Answer

A line graph

Answer

A pie chart

Answer

A bar chart

Answer

A scatter graph

Question 9

The temperature was 10 degrees on Monday and increased by 5 degrees on Tuesday. What was the temperature on Tuesday?

Accepted Answer

15 degrees

Answer

5 degrees

Answer

10 degrees

Answer

20 degrees

Question 10

Which type of graph is best for comparing the temperature of different days in a week?

Accepted Answer

A line graph

Answer

A bar chart

Answer

A table

Answer

A pie chart

Question 11

What is a key difference between a bar chart and a line graph?

Accepted Answer

Bar charts show data as bars, while line graphs show data as lines.

Answer

Bar charts show categorical data, while line graphs show numerical data.

Answer

Line graphs show trends over time, while bar charts do not.

Answer

Bar charts are used for comparing data, while line graphs are used for showing trends.

Question 12

Which of these is an example of a categorical variable?

Accepted Answer

Gender

Answer

Temperature

Answer

Age

Answer

Height

Question 13

What is the mode of the following data set: 10, 12, 10, 14, 10?

Accepted Answer

10

Answer

12

Answer

14

Answer

There is no mode

Question 14

What is a pattern?

Accepted Answer

A repeating sequence

Answer

A random order

Answer

A one-time event

Answer

A list of unrelated things

Question 15

Which is NOT a good way to show data?

Accepted Answer

Riddle

Answer

Bar chart

Answer

Pie chart

Answer

Table

Question 16

What is a trend?

Accepted Answer

A change over time

Answer

A one-time event

Answer

A repeating pattern

Answer

A list of unrelated things

Question 17

What is the difference between a bar chart and a pie chart?

Accepted Answer

Bar charts use bars, while pie charts use slices of a circle

Answer

Bar charts use lines, while pie charts use bars

Answer

Bar charts use circles, while pie charts use lines

Answer

Bar charts and pie charts show data the same way

Question 18

The table shows the number of goals scored by a football team in their last five matches. What was the average number of goals scored per match?

Accepted Answer

2.5

Answer

2

Answer

3

Answer

3.5

Question 19

What type of chart is best for showing the number of students in each class in a school?

Accepted Answer

Bar chart

Answer

Line graph

Answer

Pie chart

Answer

Scatter plot

Question 20

Which of the following is not a benefit of using data to make decisions?

Accepted Answer

It guarantees that we will never make mistakes.

Answer

It can lead to better outcomes.

Answer

It helps us make informed choices.

Answer

It saves time and resources.

Question 21

What is the second step in analyzing data?

Accepted Answer

Organizing the data

Answer

Collecting the data

Answer

Interpreting the data

Answer

Drawing conclusions

Question 22

Which bar chart shows that there are more green cars than orange cars?

Accepted Answer

[Image of a bar chart with 4 green bars and 3 orange bars]

Answer

[Image of a bar chart with 3 green bars and 4 orange bars]

Answer

[Image of a bar chart with equal number of green and orange bars]

Question 23

Which of these is NOT a shape?

Accepted Answer

Number

Answer

Circle

Answer

Square

Question 24

What does the most common number in a set of numbers represent?

Accepted Answer

The mode

Answer

The average

Answer

The range

Question 25

What is a data table used for?

Accepted Answer

To show information in rows and columns

Answer

To draw a graph

Answer

To find the average

Question 26

Which of these is NOT a good thing about a set of information?

Accepted Answer

It is biased

Answer

It is accurate

Answer

It is complete

Question 27

What is the difference between information that is in numbers and information that is not in numbers?

Accepted Answer

Numerical information is in numbers, while non-numerical information is not.

Answer

Non-numerical information is in numbers, while numerical information is not.

Answer

There is no difference between numerical and non-numerical information.

Question 28

Which of these is an example of non-numerical information?

Accepted Answer

The favourite colours of a group of children

Answer

The number of students in a class

Answer

The average temperature of a city

Question 29

Which of these is the best way to show information that shows how things are spread out?

Accepted Answer

Histogram

Answer

Bar chart

Answer

Pie chart

Question 30

What is a pattern in data?

Accepted Answer

A repeating or consistent order

Answer

A random collection of data

Question 31

What does the vertical axis of a bar chart show?

Accepted Answer

The frequency of each category

Answer

The data categories

Question 32

How is a frequency table different from a bar chart?

Accepted Answer

A frequency table shows the number of times each category appears, while a bar chart shows the distribution of data.

Answer

There is no difference between a frequency table and a bar chart.

Question 33

What does it mean to draw a conclusion from data?

Accepted Answer

To make a judgment based on the data

Answer

To form an idea about the data

Question 34

Where can we find the most accurate information about the population of our town?

Accepted Answer

Look at the official data from the government

Answer

Ask our friends and neighbors

Answer

Count all the houses and flats in our town

Answer

Check an old book or encyclopedia

Question 35

How can we gather information to learn more about something?

Accepted Answer

By observing and recording what we see.

Answer

By guessing.

Answer

By asking friends for their opinions.

Question 36

Which of these is NOT a way to show data?

Accepted Answer

Shopping list

Answer

Bar chart

Answer

Pie chart

Answer

Line graph

Question 37

What is the difference between qualitative and quantitative data?

Accepted Answer

Qualitative data describes qualities, while quantitative data uses numbers.

Answer

Quantitative data describes qualities, while qualitative data uses numbers.

Answer

Both are numerical.

Answer

Both are non-numerical.

Question 38

Which of the following is the best way to organize a group of data to make it easier to understand?

Accepted Answer

Sort the data into different categories

Answer

Randomly arrange the data

Answer

Write the data in alphabetical order

Question 39

A bar graph shows the number of students in each class in a school. Which of the following questions can NOT be answered using this graph?

Accepted Answer

What is the total number of animals in the school?

Answer

How many students are in Class 3?

Answer

Which class has the most students?

Question 40

A tally chart shows the number of different animals in a zoo. Which of the following can be determined from the tally chart?

Accepted Answer

The most popular animal in the zoo

Answer

Whether the animals are endangered

Answer

The average lifespan of each animal

Question 41

A pictograph helps us visualize data by using pictures. Which of the following is an example of a pictograph?

Accepted Answer

A graph with pictures of apples to show the number of apples sold

Answer

A table with rows and columns of data

Answer

A line graph that shows changes over time

Question 42

Which type of graph is best for showing changes in data over time?

Accepted Answer

Line graph

Answer

Pie chart

Answer

Venn diagram

Question 43

A survey asks children their favorite fruit. The results show that 40 children like apples, 30 like bananas, and 25 like oranges. Which fruit is the most popular?

Accepted Answer

Apples

Answer

Oranges

Answer

Bananas

Question 44

A scatterplot is a graph that shows the relationship between two sets of data. What can we use to describe the relationship between the data points on a scatterplot?

Accepted Answer

Positive correlation, negative correlation, or no correlation

Answer

Frequency, percentage, and ratio

Answer

Mean, median, and mode

Question 45

Which of the following is NOT a type of statistical measure?

Accepted Answer

Your favorite color

Answer

Median

Answer

Mean

Question 46

A histogram shows the distribution of data. Which of the following is NOT a characteristic of a histogram?

Accepted Answer

It has a bell-shaped curve

Answer

It has bars of equal width

Answer

It shows the frequency of data

Question 47

What do the bars in a bar graph show?

Accepted Answer

The frequency of different data values

Answer

The number of data points

Answer

The range of the data

Answer

The mean of the data

Question 48

Which measure tells us the middle value in a set of data?

Accepted Answer

Median

Answer

Mean

Answer

Mode

Answer

Range

Question 49

What is the main difference between qualitative and quantitative data?

Accepted Answer

Qualitative data is non-numerical, while quantitative data is numerical.

Answer

Quantitative data is non-numerical, while qualitative data is numerical.

Answer

Qualitative data is categorical, while quantitative data is continuous.

Question 50

Which of the following is NOT a step in the data analysis process?

Accepted Answer

Guessing conclusions without evidence

Answer

Collecting data

Answer

Visualizing data

Answer

Cleaning and preparing data

Question 51

What is the main purpose of a scatterplot?

Accepted Answer

To show the relationship between two sets of data

Answer

To compare multiple datasets

Answer

To calculate measures of central tendency

Answer

To display the distribution of a single variable

Question 52

What type of data is used to make a pie chart?

Accepted Answer

Categorical data

Answer

Continuous data

Answer

Any type of data

Answer

Numerical data

Question 53

Which of the following is an example of a qualitative variable?

Accepted Answer

Color of eyes

Answer

Test score

Answer

Age

Answer

Height

Question 54

What is the main goal of data analysis?

Accepted Answer

To find meaningful patterns and make informed decisions from data

Answer

To organize and store data

Answer

To create beautiful graphs

Answer

To calculate complex statistics