Question

(Ans. 166 cm)
3. The marks of seven students are given below. Calculate the average marks scored by
students with the help of direct and short-cut methods.
85, 42, 55, 50, 70, 60, 86
(Ans. 64 marks)
calculate arithmetic mean of monthly expenditure of 10 families of a village given below​

Answer 1

Answer:

85+42+55+50+70+60+86. 448

____________________=. ______=64

7.

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