Form a cumulative frequency table of more than type for the data given below: Height More than or equal to a More than or equal to b More than or equal to c More than or equal to d More than equal to e Cumulative Frequency f 1 + f 2 + f 3 + f 4 + f 5 say F 4 f 1 + f 2 + f 3 + f 4 say F 3 f 1 + f 2 + f 3 say F 2 f 1 + f 2 say F 1 f 1

The cumulative frequency table for more than type is as follows: Height Number of students Height ( more than ) Cumulative frequency Suitable points a - b F 4 - F 3 a F 4 a , F 4 b - c F 3 - F 2 b F 3 b , F 3 c - d F 2 - F 1 c F 2 c , F 2 d - e F 1 - f 1 d F 1 d , F 1 e - f f 1 e f 1 e , f 1

Take two perpendicular lines OX and OY on the squared paper and graduate them with divisions as needed by the data. Represent the below data on the squared paper. Height More than or equal to a More than or equal to b More than or equal to c More than or equal to d More than equal to e Cumulative Frequency f 1 + f 2 + f 3 + f 4 + f 5 say F 4 f 1 + f 2 + f 3 + f 4 say F 3 f 1 + f 2 + f 3 say F 2 f 1 + f 2 say F 1 f 1

Graph shows the Cumulative frequencies vs Intervals. OX is the x -axis. OY is the y -axis.

On the squared paper, plot the points A a , F 4 , B b , F 3 , C c , F 2 , D d , F 1 and E e , f 1 . Represent the given data on the graph. Height More than or equal to a More than or equal to b More than or equal to c More than or equal to d More than equal to e Cumulative Frequency f 1 + f 2 + f 3 + f 4 + f 5 say F 4 f 1 + f 2 + f 3 + f 4 say F 3 f 1 + f 2 + f 3 say F 2 f 1 + f 2 say F 1 f 1

Graph showing the Cumulative frequencies vs Intervals. Note → suitable points are : A a , F 4 , B b , F 3 , C c , F 2 , D d , F 1 and E e , f 1 .

EASY

10th CBSE

IMPORTANT

Earn 100

Join the plotted points by a freehand curve using a sketch pen, as shown in the figure.

Important Questions on Statistics

MEDIUM

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 14 - Statistics>ACTIVITY-II (Peer Assessment)>Q 1

Form a cumulative frequency table of more than type for the data given below:

Height	More than or equal to $a$	More than or equal to $b$	More than or equal to $c$	More than or equal to $d$	More than equal to $e$
Cumulative Frequency	$f_{1} + f_{2} + f_{3} + f_{4} + f_{5} (say F_{4})$	$f_{1} + f_{2} + f_{3} + f_{4} (say F_{3})$	$f_{1} + f_{2} + f_{3} (say F_{2})$	$f_{1} + f_{2} (say F_{1})$	$f_{1}$

MEDIUM

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 14 - Statistics>ACTIVITY-II (Peer Assessment)>Q 2

Take two perpendicular lines $OX$ and $OY$ on the squared paper and graduate them with divisions as needed by the data.

Represent the below data on the squared paper.

Height	More than or equal to $a$	More than or equal to $b$	More than or equal to $c$	More than or equal to $d$	More than equal to $e$
Cumulative Frequency	$f_{1} + f_{2} + f_{3} + f_{4} + f_{5} (say F_{4})$	$f_{1} + f_{2} + f_{3} + f_{4} (say F_{3})$	$f_{1} + f_{2} + f_{3} (say F_{2})$	$f_{1} + f_{2} (say F_{1})$	$f_{1}$

MEDIUM

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 14 - Statistics>ACTIVITY-II (Peer Assessment)>Q 3

On the squared paper, plot the points $A (a, F_{4}), B (b, F_{3}), C (c, F_{2}), D (d, F_{1})$ and $E (e, f_{1})$ .

Represent the given data on the graph.

Height	More than or equal to $a$	More than or equal to $b$	More than or equal to $c$	More than or equal to $d$	More than equal to $e$
Cumulative Frequency	$f_{1} + f_{2} + f_{3} + f_{4} + f_{5} (say F_{4})$	$f_{1} + f_{2} + f_{3} + f_{4} (say F_{3})$	$f_{1} + f_{2} + f_{3} (say F_{2})$	$f_{1} + f_{2} (say F_{1})$	$f_{1}$