Less than' cumulative frequency table for a given data is as foll… - Vidyadip

MCQ

Less than' cumulative frequency table for a given data is as follows. Then, the frequency of class interval $20-30$ is:

Marks	Less than $10$	Less than $20$	Less than $300$	Less than $40$
Cumulative frequency	$3$	$17$	$37$	$92$

A
34
B
55
C
14
✓
20

✓

Answer

Correct option: D.

20

A cumulative frequency distribution is the sum of the class and all classes below it in a frequency distribution.
Less than $30$ has the class interval 20-30. Frequency of this class interval will be corresponding to

Marks	Cumulative Frequency	Class	Frequency
Less than $10$	$3$	$1-10$	$3$
Less than $20$	$17$	$10-20$	$14$
Less than $30$	$37$	$20-30$	$20$
Less than $40$	$92$	$30-40$	$55$

$37 - 17 = 20$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q" from Statistics→Statistics — all question types→Maths STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Write the correct answer in the following: If one angle of a triangle is equal to the sum of the other two angles, then the triangle is.

In the given figure, $O$ is the centre of a circle in which $\angle\text{AOC}=100^\circ.$ Side $AB$ of quadrilateral $OABC$ has been produced to $D.$ Then, $\angle\text{CBD}=?$

If side of equilateral triangle is $25\ m$. Its area is:

Point $(-3, 5)$ lies in the:

Line segments $AB$ and $CD$ intersect at $O$ such that $AC || DB$. If $\angle\text{CAB}=45^\circ$ and $\angle\text{CDB}=55^\circ,$ then $\angle\text{BOD}=$

$\ce{ABCD}$ is a trapezium in which $A B \| D C . M$ and $N$ are the mid-points of $A D$ and $B C$ respectively. If $A B=12$
$cm , MN =14 \ cm$, then $CD =$

If $C$ is the mid-point of the line segment $AB$ and $L$ is the mid-point of $AC$, then:

The curved surface area of one cone is twice that of the other while the slant height of the latter is twice that of the former. The ratio of their radii is:

$0 . \overline{001}$ when expressed in the form $\frac{p}{q}(p, q$ are integers, $q \neq 0)$, is

If $x^{51}+51$ is divided by $x + 1,$ then the remainder is: