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Aryan Jaggi
Subject: Maths
, asked on 3/2/18
Q.5. The mean of 15 observation is 16. If each observation in the data is decreased by 25 %, what will the new mean of the data ?
[Ans. 12]
Answer
2
Reetu Shree
Subject: Maths
, asked on 3/2/18
Solve it.
Q.30. The marks obtained (out of 100) by a class of 80 students are given below:
Construct a histogram to represent the data above.
Answer
1
Reetu Shree
Subject: Maths
, asked on 30/1/18
how to distinguish between continuous and discontinuous class intervals
Answer
2
Serena Singh
Subject: Maths
, asked on 30/1/18
Q. from where did the encircled 16 came from? kindly explain
The mean of 5 numbers is 18. If one numbers is excluded , their mean is 16. Find the excluded number.
Answer
2
Kanika Gupta
Subject: Maths
, asked on 30/1/18
how to find class size?..and what is class interval and range
Answer
5
Kanika Gupta
Subject: Maths
, asked on 29/1/18
how to find unequal frequency?
Answer
1
Shashwat Mishra
Subject: Maths
, asked on 28/1/18
sir when we have to find the median let suppose of -
1,3,2,5,4,8,6,7,9
the we have to arrange the number in accedingorder
plztell fast
Answer
4
Arravelli Chaitanya
Subject: Maths
, asked on 18/1/18
What is the value of
sigma
?
Answer
3
Vedika
Subject: Maths
, asked on 15/1/18
10,11,13,14,x,17,18,19,21,23
if median is 16, then find value of x
Answer
2
Akhilesh Kumar
Subject: Maths
, asked on 13/1/18
What is answer of question 30
Q.30 The median of the observations 11, 12, 14, 18, x + 2, x + 4, 30, 32, 35, 41 arranged in ascending order is 24. Find the value of x. Also find the mean of above observations.
Answer
2
Devhuti
Subject: Maths
, asked on 13/1/18
mean of 15 observations is 23 . if each observation is multipled by 2
Answer
1
Shreya Khatavkar
Subject: Maths
, asked on 3/1/18
The mean height of 15 students is 154cm .It is discovered later on that while calculating the mean, the item 175cm was read as 145cm . Find the correct mean height
Answer
1
Fatina Fahim
Subject: Maths
, asked on 31/12/17
If the mean of 2,4,6,8,x,y is 5, then find the value of x+y
Answer
1
Arham Jain
Subject: Maths
, asked on 28/12/17
Q.13. For a particular year, the following is the distribution of the ages (in years) of primary school teachers in Himachal Pradesh:
(i). Write the lower limit of the first class interval.
(ii). Determine the class limits of the fourth class interval.
(iii) Find the class mark of the seventh class interval.
(iv) Determine the class size.
Answer
1
Arham Jain
Subject: Maths
, asked on 28/12/17
Plz tell its urgent
Only 4th part of this question
Answer
3
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[Ans. 12]

Q.30. The marks obtained (out of 100) by a class of 80 students are given below:

Construct a histogram to represent the data above.

The mean of 5 numbers is 18. If one numbers is excluded , their mean is 16. Find the excluded number.

how to find class size?..and what is class interval and range1,3,2,5,4,8,6,7,9

the we have to arrange the number in accedingorder

plztell fast

?sigmaif median is 16, then find value of x

Q.30 The median of the observations 11, 12, 14, 18, x + 2, x + 4, 30, 32, 35, 41 arranged in ascending order is 24. Find the value of x. Also find the mean of above observations.

(i). Write the lower limit of the first class interval.

(ii). Determine the class limits of the fourth class interval.

(iii) Find the class mark of the seventh class interval.

(iv) Determine the class size.

Only 4th part of this question