Mean
Trending Questions
The mean of five numbers is 27.If one number is excluded their mean is 25. find the excluded number.
- 3
- 1
- 4
- 2
The mean of 6 numbers is 24. If one number excluded, the mean of remaining numbers becomes 22. Find the excluded number.
{140, 145, 130, 135, 150}
Their mean value is equal to
- 120 cm
- 130 cm
- 140 cm
- 150 cm
If the average of the numbers 33, 34, 35, x , 37, 38, 39 is 36, what is the value of x ?
(i) 40
(ii) 32
(iii) 42
(iv) 36
Using the assumed - mean method, find the mean height of the plants from the following frequency-distribution table:
Height (in cm) xi6064687276Number of plants fi51640309
[4 MARKS]
- True
- False
Find the mean of the first six multiples of .
The mean of 15 observations is 8. If the mean of the first eight observations is 7 and that of the last eight observations is 10, then the value of the 8th observation is 16.
16
12
Find the value of 'p' if the mean of the following data is 17.
xi10p182125fi1015799
12
14
18
16
Question 82(iii)
In a public library, the following observations were recorded by the librarian in a particular week.
DaysMonTueWedThurFriSatNewspaper readers400600350550500350Magazine readers150100200300250200
What is the mean number of magazine readers?
Find the sum of numbers whose mean is .
- 2
- 3
- 4
- 1
- 6
- 4
- 9
- 8
- Frequency
- Class interval
- Mean
- Class
You have to buy a pair of running shoes. You have 3 brands: Ruma, Peebok and Abibas. You go online and search for reviews of different brands. There you saw that on the basis of stars, brands are rated. More stars imply better rating. Which brand has the highest average rating?
Ruma
Peebok
Abibas
Both Abibas and Ruma have the same rating.
- 13(2n+1)
- 12(n+4)
- 15(2n+3)
- None of these
The mean of the following distribution is: 16.5
xi15121819fi2576
15.2
15.35
Find the mean of the given data - 5 , 4 , 7 , 9 , 10 is 7.
False
True
Virender Sehwag’s score card for a five match ODI series is 23, 89, 76, 54, 102 runs respectively. What is Sehwag’s mean score for the tournament?
66.8
67.8
68.8
65.8
The test results of a class were tabulated. Who was the student whose score lies exactly in the middle of all the students in that class?
RollNoNameMarksRollNo.NameMarksRollNo.Namemarks1Pavani966Goutham2111Akash832Mahibur327Preeti8512Sathyam783Deepthi938Kushagra4513Aju984Karan819Pavan9014Akshit655Sarosh6110Vignesh5415Ajit73
- Karan
- Sathyam
- Vignesh
- Ajit
The following are the number of books issued in a school library during a week: and . Find the average number of books issued per day.
Calculate the mean, median and mode for the following data: 23, 17, 14, 17, 21, 14,
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1186979/original_temp.jpg)
The average temperature for the given week is
22.9∘
- 24∘
- 23.2∘
- 23∘
- 25∘
- 24.5∘
Variable(x)12345Frequency45y12
- 3
- 8
- 13
- 24
The mean of 100 observations is 50. If in one of the observations 50 is replaced by 150, the resulting mean will be
52
51
50.5
51.5
Find the mean of first five multiples of 5. [2 MARKS]