Home
Class 10
MATHS
While computing mean of grouped data, we...

While computing mean of grouped data, we assume that the frequecies are

A

evenly distributed over all the classes

B

centred at the class marks of the classes

C

centred at the upper limits of the classes

D

centred at the lower limits of the classes

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    OSWAL PUBLICATION|Exercise ASSERTION AND REASON BASED MCQs|4 Videos

  • STATISTICS

    OSWAL PUBLICATION|Exercise CASE BASED MCQs|15 Videos

  • SOME APPLICATIONS OF TRIGONOMETRY (HEIGHTS AND DISTANCES)

    OSWAL PUBLICATION|Exercise CASE-BASED MCQs |15 Videos

  • SURFACE AREAS AND VOLUMES

    OSWAL PUBLICATION|Exercise BOARD CORNER (LONG ANSWER TYPE QUESTIONS)|9 Videos

Similar Questions

Explore conceptually related problems

Why do we group data?

Mean of Grouped Data or discrete frequency distribution

In Calculating the mean of grouped data, grouped in classes of equal width, we may use the formula bar(x)=a+(sumf_(i)d_(i))/(sumf_(i)) Where, a is the assumed mean, a must be one of the mid point of the classes. Is the last statement correct? Justify your answer.

While calculating the mean of a given data by the assumed-mean method, the following values were obtained: A=25. Sigmaf_1d_1=110,Sigmaf_1=50 Find the mean.

If mode of a grouped data is 10 and mean is 4, then median will be

Measures Of Central Tendency|Methods To Find Mean Of Grouped Data|Questions (Assumed Mean Method)|Questions (Step Deviation Method)|OMR

Mean Of Grouped Data (With Class Intervals)|Practice Problems

Is it trun to say that the mean, mode and median of group data will always be differnet? Justify your answer.

Computation of mode by grouping - Method