Question

Class mark of fourth class
(a)70 (b)130 (c)20 (d)15
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Answer 1

Answer:

Lowerlimit+Upperlimit

⇒ Given class interval is 50−60

⇒ Lower limit =50 and upper limit =60

∴ Classmark=

2

50+60

=

2

110

=55

∴ The class mark of class

Step-by-step explanation:

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