Question

what is a value of mean marks 5-14,15-24

Answer 1

Answer:

We know that,

Mean = Sum of all observations/Number of observations

= 5 + (–14) + 15 + (–24) / 4

= [5 + 15] + [(–14) + (–24)] / 4

= 20 + (–38) / 4

= –18/4

= –9/2

= –4.5

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