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Joint Bar Graphs

Study the Gra...

Question

Study the Graph and state the scale on the Y axis:

A

2 cm = 5 students

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B

2 cm = 10 students

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C

1 cm = 5 students

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D

1 cm = 2 students

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Solution

The correct option is D 1 cm = 2 students
The scale on the Y axis is 1 cm = 2 students.

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Similar questions

Q. Arithmetic mean for the given data is

Marks	No. of students
0 - 10 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60	5 10 25 30 20 10

Q. Draw a less than ogive for the following frequency distribution

Marks	No. of students
0 - 4	8
4 - 8	4
8 - 12	6
12 - 16	12
16 - 20	10

The marks obtained by 200 students are given below :

Marks	No of students
0-10	5
10-20	10
20-30	11
30-40	20
40-50	27
50-60	38
60-70	40
70-80	09
80-90	14
90-100	6

Q. The frequency table shows the marks obtained by a group of students in a monthly test. Calculate the percentage of students who failed the test if 40 is the passing mark.

Marks	Number of students
0 - 19	5
20 - 29	7
40 - 59	14
60 - 79	11
80 - 99	3

Q. The following distribution represent the height of

160

students of a school.

Height (in $c m$ )	No. of Students
$140 - 145$	$12$
$145 - 150$	$20$
$150 - 155$	$30$
$155 - 160$	$38$
$160 - 165$	$24$
$165 - 170$	$16$
$170 - 175$	$12$
$175 - 180$	$8$

Draw an ogive for the given distribution taking

2 c m = 5 c m

of height on one axis and

2 c m = 20

students on the other axis. Using the graph, determine:
(i) The median height
(ii) The inter quartile range
(iii) The number of students whose height is above

172 c m

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