7 out of 42 students in a class are absent. Express this statement as a %.
16.66%
18%
20%
11%
Step 1 : Conversion of given statement to a fraction
⇒ 7 out of 42 = 742 = 16
Step 2 : Convert this fraction into a percentage
⇒ 16×100 = 1006 = 16.66%
Question 93
The marks obtained (out of 20) by 30 students of a class in a test are as follows : 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Preparing a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).