Question

In a public library, the following observations were recorded by the librarian in a particular week. Draw a double bar graph choosing an appropriate scale.
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Answer 1

from the table or from the bar graph, we have

Readers on Monday =400+150=550

Readers on Tuesday =600+100=700

Readers on Wednesday =350+200=550

Readers on Thursday =550+300=850

Readers on Friday =550+250=750

Readers on Saturday =350+200=550

Therefore, the number of readers is maximum on Thursday.

(c) Total number of magazine reader

150+100+200+300+250+200=1200

∴Mean=

6

1200

=200

Answer 2

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HERE IS UR ANSWER

$_____________________________$

a) see image

b) Readers on Monday =400+150=550

Readers on Tuesday =600+100=700

Readers on Wednesday =350+200=550

Readers on Thursday =550+300=850

Readers on Friday =550+250=750

Readers on Saturday =350+200=550

Therefore, the number of readers is maximum on Thursday.

(c)    Total number of magazine reader

150+100+200+300+250+200=1200

∴Mean=61200=200