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Subject: Maths, asked on 20/6/16

Two sets each of 20 observations, have the same standard derivation 5. The first set has a mean 17 and the second a mean 22. Determine the standard deviation of the set obtained by combining the given two sets.

Subject: Maths, asked on 19/6/16

​An original frequency table with mean 11 and variance 9.9 was lost but the following table derived from it was found. Contruct the original table.

 

Value of 'd':- -2,-1,0,1,2

Frequency(f):- 1,6,7,4,24

 

Subject: Maths, asked on 13/4/16

A sample of 35 observations has the mean 80 and S.D. as 4. A second sample of 65 observations from the same population has mean 70  and S.D 3. The S.D. of the combined sample is?

Subject: Maths, asked on 20/2/16

The Standard Deviation of 7 Observations is 4. If each observation is multiplied by 5, find the new standard deviation.

Subject: Maths, asked on 22/1/16

how to determine the median class while finding the mean deviation about the median????!!

Subject: Maths, asked on 4/9/15

plz tell how to get cumulative frequency with any example

Subject: Maths, asked on 10/9/22

The mean of 2,7,4,6,8 and p is 7. Find the mean deviation about the median of these observations.

Subject: Maths, asked on 4/3/22

Question 30 maths advance

Subject: Maths, asked on 21/2/22

Find D7 of data 9, 13, 14, 15, 16, 18, 20, 21, 22, 26, 28

Subject: Maths, asked on 14/2/22

QUESTIONS MATH 65

Subject: Maths, asked on 30/1/22

Maths question 51 paper 2

Subject: Maths, asked on 30/1/22

Maths question 54

Subject: Maths, asked on 7/1/22


I want to get the solution for this

Subject: Maths, asked on 7/1/22

an insurance company

Subject: Maths, asked on 29/12/21

Questions 5 Maths

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