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# Ask a Measures of Central Tendency Question

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P

Praseem 05/11/2016 in  Measures of Central Tendency

Fill up: Mode = _____ Median - ____ Mean.

0 0 4

Suyash replied | 19/11/2016

Mode = 3 Median - 2 Mean

Chityala replied | 22/11/2016

3 median - 2 mean

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P

Pratheema 05/11/2016 in  Measures of Central Tendency

Find the mean of first 15 natural numbers?

A

Ashwini replied | 26/11/2016

9

Chandan replied | 05/12/2016

Mean = sum of total numbers/ total number of numbers
= 120/15=8 Ans.

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J

Jessy 05/11/2016 in  Measures of Central Tendency

Find the mode of the following data: 14, 25, 14, 28, 18, 17, 18, 14, 23, 22, 14, 18?

Mamata replied | 29/11/2016

14 has highest frequency i.e., 4. So, mode is 14.

Rakesh replied | 01/12/2016

14 is the mode having highest frequency

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G

Guru 05/11/2016 in  Measures of Central Tendency

If the mean of 10, 12, 18, 13, x, 17 is 15. Find the value of x?

Abhijeet Kumar replied | 02/12/2016

20

Chandan replied | 05/12/2016

Mean = Sum of total numbers/ total number of numbers
10+12+18+13+x+17/6=15
70+x=90
Hence, x=90-70=20 Ans.

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S

Santosini 05/11/2016 in  Measures of Central Tendency

Find mean of the following data:

(x)
10
15
20
25
30
35
40
(f)
4
6
8
18
6
5
3

Suyash replied | 19/11/2016

Mean = €fx / € f
= ( 40+90+160+450+180+175+120) / ( 4+6+8+18+6+5+3)
= 1215/50
=243

Manan replied | 19/11/2016

(10x4 + 15x6 + 20x8 + 25x18 + 30x6 + 35x5 + 40x3 ) / (4+6+8+18+6+5+3)
= 40 + 90 + 160 + 450 + 180 + 175 + 120 / 50
= 1215 / 50
= 24.30

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B

Baby 05/11/2016 in  Measures of Central Tendency

If the mean of 10 observations is 20 and that of another 15 observations is 16. Find the mean of all 25 observations?

A

Ashwini replied | 26/11/2016

440

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U

Ushashree 05/11/2016 in  Measures of Central Tendency

The mean of 13 items is 14. If the mean of first 7 items is 12 and that of the last 7 items is 16. Find the 7th item?

Tapas replied | 29/11/2016

Sum of 13 items = S = 13 x 14 = 182.
Sum of 1st 7 items = S1 = 7 x 12 = 84.
Sum of last 7 items = S2 = 7 x 16 = 112.
So, S1 + S2 = Sum of 13 items + the 7th item = S + 7th item
--> 182 + 7th item = 84 + 112 = 196.
--> 7th item = 196 - 182 = 14

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A

Amit 05/11/2016 in  Measures of Central Tendency

For what value of x, the mode of the following data is 10: 7, 6, 10, x, 7, 5, 12, 14?

Mamata replied | 27/11/2016

10

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V

Vishal 05/11/2016 in  Measures of Central Tendency

Find the mode of 3, 4, 6, 5, 7, 5, 8, 5, 3, 2. If one observation 5 is replaced by 3, will the modal value change? If yes, find it?

A

Ashwini replied | 26/11/2016

Yes, mode = 3.

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P

Pradeep 05/11/2016 in  Measures of Central Tendency

Find the median of the following data 31, 15, 19, 12, 30, 45, 60, 50, 25, 40. If 40 is replaced by 20, what will be the new median?

Karuna replied | 29/11/2016

Arranging the data in ascending order, we get: 12, 15, 19, 25, 30, 31, 40, 45, 50, 60.
As there are 10 values and 10 is an even number, the mean of 5th and 6th value will be the median.
So, median=(30+31)/2 = 30.5
If 40 is replaced by 20, we get: 12, 15, 19, 20, 25, 30, 31, 45, 50, 60.
So, median will be (25+30)/2=27.5.

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T

Taj 05/11/2016 in  Measures of Central Tendency

What is the average of the data: 4, 5, 6, 8, 10, 11, 12?

Chandan replied | 05/12/2016

Average= (Sum of total data)/no. of data
= (4+5+68+10+11+12)/7= 8 (Ans).

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Y

Yusufali 05/11/2016 in  Measures of Central Tendency

What is the mean of first eight prime numbers?

Saraswathi replied | 25/11/2016

2, 3, 5, 7, 11, 13, 17, 19 are the first 8 prime numbers.

A

Ashwini replied | 26/11/2016

9

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O

Orange 05/11/2016 in  Measures of Central Tendency

Find the mean of the marks of 10 students, having marks as, 75, 66, 69, 76, 110, 25, 52, 96,67, 82?

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S

Sushil 05/11/2016 in  Measures of Central Tendency

Find the mean of first 10 prime numbers?

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K

Kishore 05/11/2016 in  Measures of Central Tendency

Form a discrete series of the following data, then calculate the mean: 21, 32, 22, 25, 18, 20, 24, 30, 19, 21, 17, 24, 18, 25, 17, 23, 22, 21?

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P

Poonam 05/11/2016 in  Measures of Central Tendency

Find the median of 25, 34, 31, 23, 22, 26, 35, 29, 20, 32?

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J

Jainam 05/11/2016 in  Measures of Central Tendency

The following data have been arranged in ascending order of magnitudes: 59, 62, 65, x, x + 2, 72, 85, 94. If the median of the data is 69. Find the value of x?

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V

Vijay 05/11/2016 in  Measures of Central Tendency

The mean of 10, 12, 16, 20, p and 26 is 17. Find the value of p?

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R

Reshma 05/11/2016 in  Measures of Central Tendency

The demand of different shirt sizes are given below. Find the modal shirt sizes:

Size
38
39
40
41
42
43
44
No. of persons
26
39
20
15
13
7
5

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K

K 05/11/2016 in  Measures of Central Tendency

The following observations have been arranged in the ascending order. If the median of the data is 63. Find x: 29, 32, 48, 50, x, x +2, x +3, 72, 78, 84, 95?

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R

Reshma 05/11/2016 in  Measures of Central Tendency

Verify the empirical formula for the following data: 2, 3, 2, 5, 6, 3, 4, 7, 4, 9?

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M

Millennium 05/11/2016 in  Measures of Central Tendency

What is the mean of all factors of 12?

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A

Aman 05/11/2016 in  Measures of Central Tendency

What is the mean of the following data: x, (x + 1), (x + 2), (x + 3), (x + 4)?

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K

Khushwunder 05/11/2016 in  Measures of Central Tendency

The mean of 8 observation is 30. If an observation 23 is deleted, then what is the value of new mean?

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M

Malvika 05/11/2016 in  Measures of Central Tendency

What is the value of x, if the median of the arranged observations 5, 7, 10, (x + 4), ( x + 6), 18, 20, 22 is 16?

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