Data handaling

What is data handaling?

• Data handling is of collecting, organizing, analyzing, and presenting data to get useful information.

• It is counting

• It's algebra

• It is how we make maps

Name the methods used in data handling.

• Chart

• Pictograph

• Plasmagraph

• None of the above

What does the whole of a pie chart represent?

• The biggest number

• 1 category

• 50%

• 100%

Which type of data is best shown using a bar graph?

• Continuous data

• Random data

• Discrete or categorical data

• Decimal data

Why are pie charts useful?

• They show exact values over time

• They compare percentages of a whole

• They show averages

• They show trends

What determines the height or length of a bar in a bar graph?

• Color of the bar

• Width of the bar

• Position of the bar

• Value or frequency of the data

Can a pie chart be used to show changes over time?

• No, because it shows data at one time

• Yes, sometimes

• Yes, always

• No, because it uses percentages

Which are types of pie charts?

• Vertical and horizontal

• 2D pie and donut chart

• Line and bar

• Histogram and polygon

A pie chart shows 25% of students prefer basketball. What fraction is this?

• 1/2

• 1/3

• 1/4

• 3/4

If a bar graph shows 4 categories, how many bars will it have?

• 2

• 3

• 4

• 8