Short Quiz

Question 1 of 5

NCERT Exemplar

Consider the data :

Class	65-85	85-105	105-125	125-145	145-165	165-185	185-205
Frequency	4	5	13	20	14	7	4

The difference of the upper limit of the median class and the lower limit of the modal class is

A 0 B 19 C 20 D 38

Select one option. Answers are shown after the test.

Question 2 of 5

In statistics, an outlier is a data point that differs significantly from other observations of a data set.

If an outlier is included in the following data set, which measure(s) of central tendency would change?

12, 15, 22, 44, 44, 48, 50, 51

A only mean B only mean and median C all - mean, median, mode D (cannot be said without knowing the outlier.)

Select one option. Answers are shown after the test.

Question 3 of 5

NCERT Exemplar

For the following distribution :

Class	0-5	5-10	10-15	15-20	20-25
Frequency	10	15	12	20	9

the sum of lower limits of the median class and modal class is

A 15 B 25 C 30 D 35

Select one option. Answers are shown after the test.

Question 4 of 5

Consider the following frequency distribution of the heights of 60 students of a class :

Height (in cm)	Number of students
150-155	15
155-160	13
160-165	10
165-170	8
170-175	9
175-180	5

The sum of the lower limit of the modal class and upper limit of the median class is

A 310 B 315 C 320 D 330

Select one option. Answers are shown after the test.

Question 5 of 5

CBSE Board Exam 2026

The class mark of the median class of the following data is :

Class Interval	10-25	25-40	40-55	55-70	70-85	85-100
Frequency	2	3	7	6	6	6

A 40 B 55 C \(47.5\) D \(62.5\)

Select one option. Answers are shown after the test.

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