The bar graph corresponding to the following frequency distribution table is
The bar graph corresponding to the following frequency distribution table is
The correct option is B
The frequency table represents the number of students in a class having certain eye color.
To plot a bar graph with the given data, eye color is plotted on the horizontal axis, then the vertical axis represents the number of students.
Step 1: Observe the minimum and maximum value from the number of student columns and make a corresponding division in the vertical axis.
Here. the minimum is 7 and the maximum is 30.
Hence, we make 3 equal divisions of 10 units and plot up to 30 units as shown in the figure.
Step 2: For black eye color, draw a corresponding rectangle of height 30 units.
Step 3: For blue eye color, draw a corresponding rectangle of height 21 units.
To plot 21, we estimate that 21 is relatively more than 20 but less than 30. 21 is less than 25. Hence, by approximation, we plot 21 as a little higher than 20 units.
Step 4: For green eye color, draw a corresponding rectangle of height 7 units.
We need to plot 7 as an approximation.
⇒ We know that 7 < 10 but 7 > 5
∴ We plot 7 as a little higher than 5 but less than 10.
The frequency table represents the number of students in a class having certain eye color.
To plot a bar graph with the given data, eye color is plotted on the horizontal axis, then the vertical axis represents the number of students.
Step 1: Observe the minimum and maximum value from the number of student columns and make a corresponding division in the vertical axis.
Here. the minimum is 7 and the maximum is 30.
Hence, we make 3 equal divisions of 10 units and plot up to 30 units as shown in the figure.
Step 2: For black eye color, draw a corresponding rectangle of height 30 units.
Step 3: For blue eye color, draw a corresponding rectangle of height 21 units.
To plot 21, we estimate that 21 is relatively more than 20 but less than 30. 21 is less than 25. Hence, by approximation, we plot 21 as a little higher than 20 units.
Step 4: For green eye color, draw a corresponding rectangle of height 7 units.
We need to plot 7 as an approximation.
⇒ We know that 7 < 10 but 7 > 5
∴ We plot 7 as a little higher than 5 but less than 10.
