Measures of Central Tendency Questions and Lessons

Follow 2 Followers

Ask a Question

Feed

Answered on 05/12/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Measures of Central Tendency

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

Chandan Singh

Math Learning In easy Way

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.

Answers 2 Comments
Dislike Bookmark

Answered on 26/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Measures of Central Tendency

Find the mean of first 15 natural numbers?

Ashwini

commerce

9

Answers 2 Comments
Dislike Bookmark

Answered on 05/12/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Measures of Central Tendency

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

Chandan Singh

Math Learning In easy Way

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

Answers 1 Comments
Dislike Bookmark

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

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

Mamta Mund

Maths Tutor

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

Answers 2 Comments
Dislike Bookmark

Answered on 29/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics 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,...

Karuna Shankar Upadhyay

Complete Package

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.

Answers 1 Comments
Dislike Bookmark

Answered on 29/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics 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 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.

Answers 1 Comments
Dislike Bookmark

Answered on 27/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics 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?

Mamta Mund

Maths Tutor

10

Answers 1 Comments
Dislike Bookmark

Answered on 25/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Measures of Central Tendency

What is the mean of first eight prime numbers?

Saraswathi S.

Tutor

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

Answers 2 Comments
Dislike Bookmark

Answered on 26/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics 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...

Ashwini

commerce

Yes, mode = 3.

Answers 1 Comments
Dislike Bookmark

Answered on 26/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics 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?

Ashwini

commerce

440

Answers 1 Comments
Dislike Bookmark

Overview

Questions 25

Total Shares  

Top Contributors

Connect with Expert Tutors & Institutes for Measures of Central Tendency

Ashwini

4 Answers

Chandan

3 Answers

Mamata

3 Answers

Suyash

2 Answers

Karuna

1 Answer

Chityala

1 Answer

Tapas

1 Answer

Manan

1 Answer

Abhijeet Kumar

1 Answer

x

Ask a Question

Please enter your Question

Please select a Tag