AI Mentor

Check Your IQ

Free Expert Demo

Try Test

Courses

Dropper NEET Course Dropper JEE Course Class - 12 NEET Course Class - 12 JEE Course Class - 11 NEET Course Class - 11 JEE Course Class - 10 Foundation NEET Course Class - 10 Foundation JEE Course Class - 10 CBSE Course Class - 9 Foundation NEET Course Class - 9 Foundation JEE Course Class -9 CBSE Course Class - 8 CBSE Course Class - 7 CBSE Course Class - 6 CBSE Course

Offline Centres

Find the mean of the following data by the assumed mean method:

Class Interval
Frequency
150 - 200
14
200 - 250
26
250 - 300
17
300 - 350
23
350 - 400
20

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

275

279.5

325

329.5

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Class Interval	Frequency (f)	x	d = x - a	fd
150 - 200	14	175	-100	-1400
200 - 250	26	225	-50	-1300
250 - 300	17	275 = a	0	0
300 - 350	23	325	50	1150
350 - 400	20	375	100	2000

Σ fd = 450, Σf = 100

\underset{̲}{x} = A + \frac{Σfd}{Σf}

= 275 + \frac{450}{100}

= 279.5

So, Option 2 is correct.

Watch 3-min video & get full concept clarity

courses

No courses found

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!