data handling

Data handling

BY- SHAURYA, RAYHAN, ABU, SAM, SYED, SEAN

topic-

bar graph

video-

https://youtu.be/ci4S6F40f5k

Bar graph

A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes called a column chart.

Multiple Choice

what is a bar graph

• it presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent.

• it is a chart of bars

• it tells us about things

• all of the above

Multiple Choice

bars can be ______ and _______ . the vertical chart is also known as ______ chart

• vertical , wavy

  column

• vertical , horizontal

  column

• best, awesome

  horizontal

• none of them

​interpretation of bar graph

The height of each bar represents the value of the quantity it represents. Bar graphs are ideal for comparing numbers and data. Bar graphs have vertical and horizontal axes known as the x and y-axis, respectively. For example, if you have to compare the heights of your classmates, a bar graph can be used.

Multiple Choice

what value does the height of each bar represents

• quantity

• amount

• height

• quality

​how to draw a bar graph

• Step 1: First, decide the title of the bar graph.

• Step 2: Draw the horizontal axis and vertical axis.

• Step 3: Now, label the horizontal axis.

• Step 4: Write the names on the horizontal axis,

• Step 5: Now, label the vertical axis by putting numbers

• Step 6: Finalise the scale range for the given data.

• Step 7: Finally, draw the bar graph that should represent each category with their respective numbers.

Example of a bar graph

Multiple Choice

what can be labelled in vertical axis

• numbers

• alphabets

• names

• all of the above

Multiple Choice

what can be labelled in horizontal axis

• numbers

• alphabets

• names

• all of them

Multiple Choice

in this bar graph. what is the difference between the people who like blueberry + Kiwifruit + grapes and the people who like Apples + Oranges + bananas

• 5

• 6

• 7

• 8

Multiple Choice

in this bar graph. what is total number of people who like all the fruits

• 123

• 341

• 312

• 145