Math, asked by dhrijarabari, 2 months ago

mean of 18 observation is 36 and mean of 36 observations is 18 find mean of all data

Answers

Answered by itzbhavesh282

2

Answer:

Given : Mean =18

We know, Mean (

x

)=

Σf

Σfx

⟹18=

40+f

704+20f

⟹18(40+f)=704+20f

⟹720+18f=704+20f

⟹720−704=20f−18f

⟹2f=16

⟹f=8

verified_toppr

Answered by venkatasreeram

2

Answer:

use mean formula mean=range/data

Step-by-step explanation:

34/26=23 pls mark me as brainliest

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