Question

600 Mangoes are packed in 40 boxes, 7)
ints to then how many boxes are required to
meme
membe
pack 1050 mangoes?
​

Answer 1

Answer:

No. of mangoes Mid - value

(x

i

) Frequency

(f

i

) u

i

=

3

x

i

−60

f

i

u

i

50 - 52 51 15 -3 -45

53 - 55 54 110 -2 -220

56 - 58 57 135 -1 -135

59 - 61 60 115 0 0

62 - 64 63 25 3 25

Total 400 -375

Here, we have used exclusive method in class interval formation.

If we make the series an inclusive one the mid-values remain same.

So there is no need to convert the series.

Lets take assumed mean, A as 60

Class interval =3

∴u

i

=

h

x

i

−A

=

3

x

i

−60

x

ˉ

=A+h

∑f

i

∑f

i

u

i

=60+3×

400

−375

=57.1875

Hence, the mean number of mangoes kept in a packing box is 57.19

Answer 2

15,750 is your answer

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