Question

What are the class size and the class mark of the class interval 45-50 .​

Answer 1

Answer:

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Step-by-step explanation:

Class mark = lower limit + upper limit /2

Class mark for particular questions is

Class mark = 45+50 /2

Class mark = 47.5

Class marks is used for frequency polygon without histogram.

Answer 2

Answer:

(45+50)/2 =47.5

Step-by-step explanation:

(upper class +lower class )/2