1 Choose the correct answer from the given four options in the formula x = a + ∑fixi∑fi - Maths - Statistics

Question

1 Choose the correct answer from the given four options in the
formula x ¯   =   a   +   ∑ f i x i
∑ f i
For finding the mean of grouped data di's are deviations from a
of
(a) lowers limits of the classes (b) Upper limits of the
classes
(c) Mid points of the classes (d) Frequencies of the class marks

Shruti Tyagi · Accepted Answer

Dear student,

In a mean of grouped data di's are deviation from the midpoint of
the classes
Thus option C is correct

Regards

1. Choose the correct answer from the given four options in the formula x ¯ = a + ∑ f i x i ∑ f i For finding the mean of grouped data di's are deviations from a of (a) lowers limits of the classes (b) Upper limits of the classes (c) Mid points of the classes (d) Frequencies of the class marks