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Pooja
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
Answer
2
Pooja
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
Answer
1
Pooja
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
Answer
1
Nabilah Nowshath
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
Answer
1
Tara Manoj Mathews
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
Answer
1
Tara Manoj Mathews
Subject: Maths
, asked 14 hours, 59 minutes ago
Pls solve all the 3 questions
Answer
1
Tara Manoj Mathews
Subject: Maths
, asked 15 hours, 4 minutes ago
Help me pls to solve this
Answer
1
Tara Manoj Mathews
Subject: Maths
, asked 15 hours, 5 minutes ago
Help me pls now
Answer
1
Tara Manoj Mathews
Subject: Maths
, asked 15 hours, 5 minutes ago
Pls help me solve this question...
Answer
1
Ishan Gangwal
Subject: Maths
, asked 20 hours, 51 minutes ago
How can -1^2 be -1
Answer
1
Rakhi
Subject: Maths
, asked 1 day, 1 hour ago
Please help me fill the blanks
Answer
1
Rakhi
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
Answer
1
Pooja
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
Answer
1
Pooja
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 & 5, respectively. Find the variance of
combined sample of size 650.
Answer
1
Pooja
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
Answer
1
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What are you looking for?

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

observations are 1, 3, 5, find the other two.

a) 2, 6

b) 3, 3

c) 1, 5

d) 2, 4

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

5w, 5x, 5y and 5z.

a) 225

b) 5/9

c) 9/5

d) 54

respectively. Their standard deviations were 2 & 5, respectively. Find the variance of

combined sample of size 650.

(a) 71

(b) 74

(c) 70

(d) 72