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Answered on 02/01/2018 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Tanvi Madbhavi

Highly Qualified Tutor

3 mean - 2 median
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Answered on 26/11/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Ashwini

commerce

9
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Answered on 27/08/2019 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Venkatesan Iyer

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No of observations = 8 (even) 8/2=4 Median =(4th data + 5th data)/2 69= (x+(x+2))/2 69*2=2x+2 138-2=2x 136/2=x 68=x
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Answered on 29/11/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Mamta Mund

Maths Tutor

14 has highest frequency i.e., 4. So, mode is 14.
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Answered on 05/12/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Chandan Singh

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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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Answered on 29/11/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Tapas Bhattacharya

Tutor

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 Answer: 14.
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Answered on 27/11/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Mamta Mund

Maths Tutor

10
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Answered on 29/11/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Karuna Shankar Upadhyay

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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... read more
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. read less
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Answered on 05/12/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Chandan Singh

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Average= (Sum of total data)/no. of data = (4+5+68+10+11+12)/7= 8 (Ans).
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Answered on 25/11/2016 Learn Measures of Central Tendency +2 Mathematics Class IX-X Tuition

Saraswathi Srinivasan

Class I-VIII,Nursery-Kg,Spoken English/Telugu/Hindi /Tamil tutor with 20 years experience

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