Question

Class 10th ncert maths exercise 14.1 question no 8
by step deviation method

Answer 1

Answer:

here you go.

Step-by-step explanation:

From given data, Assume mean = 17

$(x bar) = a + lemma fi . di \div fi$

=

$17 + ( \ - 181 \div 40) - 17 - 4.52 = 12.48$

Hence mean 12.48 number of days a student was absent.

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