Find the mean of the following using step deviation method- Class interval 50-55 55-60 60-65 65-70 70-75 75-80 80-85 85-90 Frequency 5 20 10 10 9 6 12 8

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Mathematics

Step Deviation Method

Find the mean...

Question

Find the mean of the following using step deviation method.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D
69

Suggest Corrections

Similar questions

Q. Find out median of the following series, using graphic technique:

Class Interval	40−45	45−50	50−55	55−60	60−65	65−70	70−75	75−80	80−85
Frequency	4	6	8	10	7	6	5	3	1

Q. i) Using step-deviation method, calculate the mean marks of the following distribution.
ii) State the modal class.

\begin{matrix} C l a s s i n t e r v a l & F r e q u e n c y 50 - 55 & 5 55 - 60 & 20 60 - 65 & 10 65 - 70 & 10 70 - 75 & 9 75 - 80 & 6 80 - 85 & 12 85 - 90 & 8 \end{matrix}

[4 MARKS]

Q. The following table gives the weights of one hundred persons. Copute the coefficient of dispersion by the method of limits.

Class-interval	40−45	45−50	50−55	55−60	60−65	65−70	70−75	75−80	80−85	85−90
No. of persons	4	13	8	14	9	16	17	9	8	2

Find the cumulative frequency for the class interval 65-70 $\begin{matrix} Class interval & Frequency 50 - 55 & 5 55 - 60 & 20 60 - 65 & 10 65 - 70 & 10 70 - 75 & 9 75 - 80 & 6 80 - 85 & 6 85 - 90 & 8 \end{matrix}$

Find the mean of the following data, using step-deviation method.

Class	5−15	15−25	25−35	35−45	45−55	55−65	65−75
Frequency	6	10	16	15	24	8	7

Join BYJU'S Learning Program

Find the mean of the following using step deviation method.

The correct option is D 69

The correct option is D
69