Question

Students of Grade 7 were grouped based on the student's eye color. The following bar graph represents the data set:
Choose the correct option(s) regarding the bar graph.

• A. Number of students with black-colored eyes is the most.
• B. $5$ students have green-colored eyes.
• C. Mode of the data set is group of students with black-colored eyes.
• D. The number of students with a green-colored eyes are larger than the number of students with a blue-colored eyes.

Answer 1

Answer: (A), (B), (C)

Mode of the data set is group of students with black-colored eyes.

In a bar graph, the height of each rectangle represents the number of students in each group.

Here, the highest rectangular bar corresponds to black.
$\therefore$ Number of students with black-colored eyes is the most.

$\Rightarrow$ Option A is correct
The height of the green rectangle is midway between 0 and 10 units. So, the height is 5 units.

$\therefore$ The group of students consists of 5 students who have green-colored eyes.
$\Rightarrow$ Option B is correct

Also, mode is the most frequently occuring data.
Hence, mode of the data set is group of students with black-colored eyes.
$\Rightarrow$ Option C is correct

The height of rectangular bar corresponding to green is less than that of blue.
$\therefore$ The number of students with a blue-colored eyes are larger than the number of students with a green-colored eyes.
$\Rightarrow$ Option (d) is wrong.