Subject: Maths, asked 12 hours, 28 minutes ago

## Question 2. The algebraic sum of the deviation of 20 observations measured from 30 is 2. So, the mean of observations is (a) 30.0 (b) 30.1 (c) 30.2 (d) 30.3

Subject: Maths, asked 12 hours, 31 minutes ago

## The mean of 5 observations is 3 and variance is 2. If three of the five observations are 1, 3, 5, find the other two. a) 2, 6 b) 3, 3 c) 1, 5 d) 2, 4

Subject: Maths, asked 12 hours, 52 minutes ago

## The mean and Standard deviation of a sample were found to be 9.5 and 2.5, respectively. Later, an additional observation 15 was added to the original data. Find the S.D. of the 11 observation. a) 2.6 b) 2.8 c) 2.86 d) 3.24

Subject: Maths, asked 13 hours, 14 minutes ago

## represent on the graph paper f(x)=Ix-4.i.e modulus of x-4 ............................ idk which chap this is frm so i said trig so pls excuse me and pls do reply as soo s possible

Subject: Maths, asked 14 hours, 53 minutes ago

## y=e raised to x +sinx/secx. If y = sinx + tanx, find dy/dc at x= pie/3

Subject: Maths, asked 14 hours, 59 minutes ago

## Pls solve all the 3 questions

Subject: Maths, asked 15 hours, 4 minutes ago

## Help me pls to solve this

Subject: Maths, asked 15 hours, 5 minutes ago

## Help me pls now

Subject: Maths, asked 15 hours, 5 minutes ago

## Pls help me solve this question...

Subject: Maths, asked 20 hours, 51 minutes ago

## How can -1^2 be -1

Subject: Maths, asked 1 day, 1 hour ago

Subject: Maths, asked 1 day, 4 hours ago

## Please tell me what I have to fill in observations(all the blanks). please tell me asap

Subject: Maths, asked 1 day, 13 hours ago

## Assuming the variance of four numbers w, x, y, and z as 9. Find the variance of 5w, 5x, 5y and 5z. a) 225 b) 5/9 c) 9/5 d) 54

Subject: Maths, asked 1 day, 15 hours ago

## The mean of two samples of the sizes 250 and 320 were found to be 20,12 respectively. Their standard deviations were 2 &amp; 5, respectively. Find the variance of combined sample of size 650.

Subject: Maths, asked 1 day, 15 hours ago

## In a class there are 20 juniors, 15 seniors and 5 graduate students. If the junior averaged 65 in the midterm exam, the senior averaged 70 and the graduate students averaged 91, then what is the mean of the centre class approximately? (a) 71 (b) 74 (c) 70 (d) 72

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