Find the modal class
Test Scores Frequency Greater than Cummulative frequency
$91 - 100$ $9$ $20$
$81 - 90$
$6$ $11$
$71 - 80$ $3$ $5$
$61 - 70$ $0$ $2$
$51 - 60$ $2$ $2$

81 - 90

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91 - 100

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61 - 70

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71 - 80

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Solution

The correct option is A $91 - 100$
$\Rightarrow$ We know that modal class is a group that has highest frequency.
$\Rightarrow$ Here, in given frequency table we can see class interval $91 - 100$ has highest frequency i.e. $9$
$∴$ Modal class $= 91 - 100$

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Similar questions

Find the median wages for the following frequency distribution: $\begin{matrix} Wages per day & 61 - 70 & 71 - 80 & 81 - 90 & 91 - 100 & 101 - 110 & 111 - 120 (in Rs.) No. of women & 5 & 15 & 20 & 30 & 20 & 8 workers \end{matrix}$

Q. In an examination taken by

400

students, the scores were as shown in the following distribution table:

Marks	$1 - 10$	$11 - 21$	$21 - 30$	$31 - 40$	$41 - 50$	$51 - 60$	$61 - 70$	$71 - 80$	$81 - 90$	$91 - 100$
Frequency	$8$	$14$	$32$	$56$	$102$	$80$	$54$	$30$	$16$	$8$

Find the mode scores?

Marks	No. of students
$1 - 20$	$8$
$21 - 40$	$12$
$41 - 50$	$15$
$51 - 60$	$20$
$61 - 70$	$13$
$71 - 80$	$17$
$81 - 90$	$5$

find probability that

A student obtained more than

50

Marks	No. of students
$1 - 20$	$8$
$21 - 40$	$12$
$41 - 50$	$15$
$51 - 60$	$20$
$61 - 70$	$13$
$71 - 80$	$17$
$81 - 90$	$5$

Write the probability of a student obtain less than

51

Marks	No. of students
$1 - 20$	$8$
$21 - 40$	$12$
$41 - 50$	$15$
$51 - 60$	$20$
$61 - 70$	$13$
$71 - 80$	$17$
$81 - 90$	$5$

Number of students obtained marks between

41

80

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Test Scores	Frequency	Greater than Cummulative frequency
$91 - 100$	$9$	$20$
$81 - 90$	$6$	$11$
$71 - 80$	$3$	$5$
$61 - 70$	$0$	$2$
$51 - 60$	$2$	$2$

Find the modal class Test ScoresFrequencyGreater than Cummulative frequency91−10092081−9061171−803561−700251−6022

The correct option is A 91−100⇒ We know that modal class is a group that has highest frequency.⇒ Here, in given frequency table we can see class interval 91−100 has highest frequency i.e. 9∴ Modal class =91−100

Find the modal class
Test Scores Frequency Greater than Cummulative frequency
$91 - 100$ $9$ $20$
$81 - 90$
$6$ $11$
$71 - 80$ $3$ $5$
$61 - 70$ $0$ $2$
$51 - 60$ $2$ $2$

The correct option is A $91 - 100$
$\Rightarrow$ We know that modal class is a group that has highest frequency.
$\Rightarrow$ Here, in given frequency table we can see class interval $91 - 100$ has highest frequency i.e. $9$
$∴$ Modal class $= 91 - 100$