# Measures Of Central Tendency Free Doubts and Solutions

### CBSE - IX - Mathematics - Statistics

## If class mark is 10 and class width is 6 then find the class

**Vvirattiger2003**2nd April 2019, 4:53 AM

### CBSE - IX - Mathematics - Statistics

## explain about central tendency

**shanushukla26**13th February 2018, 9:10 PM

### CBSE - IX - Mathematics - Statistics

## Find p if mean is 40.4 and xi 10 20 30 40 50 60 70 and fi 3 8 12 5 p 7 5

**nisha_vini29**31st January 2018, 1:12 AM

### CBSE - IX - Mathematics - Statistics

## find missing frequency if mean is 1.46 and values of xi are 0 1 2 3 4 5 and fi are 46 x y 25 10 5 = 200

**nisha_vini29**31st January 2018, 12:58 AM

### CBSE - IX - Mathematics - Statistics

## What day was 26th of January 1950 and 15th August 1947?

**aahnik.mohanty**29th December 2017, 1:24 PM

### CBSE - IX - Mathematics - Statistics

## In a Mathematics test given to 15 students, the following marks out of 100 are recorded: 41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60 Find the median and mode of this data.

**Topperlearning User**7th November 2017, 1:48 PM

### CBSE - IX - Mathematics - Statistics

## Find mean, mode and median for the following data: 10, 15, 18, 10, 10, 20, 10, 20, 15, 21, 15 and 25

**Topperlearning User**7th November 2017, 1:46 PM

### CBSE - IX - Mathematics - Statistics

## The points scored by a basket ball team in a series of match are as follows: 17, 2, 7, 27, 25, 5, 14, 18, 10, 24, 28, 10, 8, 7, 10, 28 Find the median and mode of the above data.

**Topperlearning User**7th November 2017, 1:45 PM

### CBSE - IX - Mathematics - Statistics

## The numbers 2, 3, 4, 4, 2x + 1, 5, 5, 6, 7 are arranged in ascending order. If the median is 5, find x. Hence, find the mode.

**Topperlearning User**7th November 2017, 1:38 PM

### CBSE - IX - Mathematics - Statistics

## The following observations have been arranged in ascending order: 29, 32, 48, 58, x, x + 2, 64, 78, 84, 90. If median of the data is 63, find the mode of the data.

**Topperlearning User**7th November 2017, 1:35 PM

### CBSE - IX - Mathematics - Statistics

## Find the median of the following data 19, 25, 59, 48, 35, 37, 30, 32, 51. If 25 is replaced by 52 what will be the new median?

**Topperlearning User**7th November 2017, 1:13 PM

### CBSE - IX - Mathematics - Statistics

## Mean of 25 observations was found to be 78.4. But later on, it was discovered that one observation 96 was misread as 69. Find the correct mean.

**Topperlearning User**18th August 2017, 2:05 PM

### CBSE - IX - Mathematics - Statistics

## Find the median of first 11 multiples of 3.

**Topperlearning User**18th August 2017, 2:01 PM

### CBSE - IX - Mathematics - Statistics

## Determine the median of 24, 23, a, a - 1, 12, 16, where a is the mean of 10, 20, 30, 40 and 50.

**Topperlearning User**18th August 2017, 1:58 PM

### CBSE - IX - Mathematics - Statistics

## For what value of y is the mode of the following data equal to 7? 3, 5, 6, 7, 3, 4, 7, 3, 6, y, 8, 7.

**Topperlearning User**18th August 2017, 1:58 PM

### CBSE - IX - Mathematics - Statistics

## The mean of 68 numbers is 18. If each number is divided by 6, find the new mean. Find the relation between the new mean and the old mean.

**Topperlearning User**18th August 2017, 1:57 PM

### CBSE - IX - Mathematics - Statistics

## For what value of x, is the mode of the following data 17?15,16,17,13,17,16,14,x,17,16,15,15

**Topperlearning User**18th August 2017, 1:57 PM

### CBSE - IX - Mathematics - Statistics

*The mean of 10 numbers is 20 . If 5 is subtracted from every number , what will be the new mean.*

*The mean of 10 numbers is 20 . If 5 is subtracted from every number , what will be the new mean.***Madan Gupta**29th March 2017, 7:11 AM

### CBSE - IX - Mathematics - Statistics

**WHICH ONE OF THE FOLLOWING IS CORRECT ALSO WHY AND HOW ?**
**1. MODE = 2 MEDIAN - 3 MEAN**
**2. MODE = 3 MEDIAN - 2 MEAN**
**3. MEAN = 3 MEDIAN - 2 MODE**
**4. MEDIAN = 3 MEAN - 2 MEAN**

**WHICH ONE OF THE FOLLOWING IS CORRECT ALSO WHY AND HOW ?**

**1. MODE = 2 MEDIAN - 3 MEAN**

**2. MODE = 3 MEDIAN - 2 MEAN**

**3. MEAN = 3 MEDIAN - 2 MODE**

**4. MEDIAN = 3 MEAN - 2 MEAN**

**Madan Gupta**29th March 2017, 7:06 AM

### CBSE - IX - Mathematics - Statistics

## Distingues between center point and average value of given dats ?

**Ramgopal**21st May 2016, 1:49 PM

### CBSE - IX - Mathematics - Statistics

## the mean weight of 8 numbers is 15. If each number is multiplied by 2, what will be the new mean

**Rishitha Reddy**10th March 2016, 8:40 PM

### CBSE - IX - Mathematics - Statistics

## Draw a pie chart for below: (From OTBA)
**Language** Italian English Spanish Polish Russain Serbian Portuguese
**Percentage** 11 57 6 4 10 9 3

**Language**Italian English Spanish Polish Russain Serbian Portuguese

**Percentage**11 57 6 4 10 9 3

**singhaivk05**26th February 2015, 9:26 PM

### CBSE - IX - Mathematics - Statistics

## I have a question:-
->Find the mean of the following distribution:
x:15 17 19 20+p 23
f: 2 3 4 5p 6

**Amrut Kurtkoti**10th December 2014, 8:15 PM

### CBSE - IX - Mathematics - Statistics

In kushal’s school, quiz contests were held in different areas. The eligibility criteria to win a merit certificate are as following:

- To participate in quiz contests in at least four areas. Maximum points for each area is 20
- If participated in more than 4, the best four will be considered for eligibility
- Average point earned in four quiz contests-equal to or above 13

Rohan planned to participate in 4 areas. He got 6,16 and 8 marks, respectively in environmental awareness,hindi spelling and scientific literacy. What is the minimum point that he needs to score in financial literacy quiz to earn the merit certificate?

**rkjha_in**18th November 2014, 9:53 PM

### CBSE - IX - Mathematics - Statistics

## sana participated in a two -round TV qiz in the first round she answered 10 recieved 4 points for ecach correct answer and lost a point for each incorrect answer. sana needed more than 20 points to paticipated in second round.

**thomassubin32**1st September 2014, 9:19 PM

### CBSE - IX - Mathematics - Statistics

## The mean of 25 observations is 36. If the mean of the first 13 observations is 32 and that of last 13 observations is 39. Find the 13th observation.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Statistics

## If mean of five observations x, x + 2, x + 4, x + 6, x + 8 is 11, find mean of first three observations.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Statistics

## The mean weight per student in a group of 7 students is 55 kg. The individual weights of 6 of them in kg are 52, 54, 55, 53, 56, 54. Find the weight of the seventh student.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Statistics

## The median of the following observations arranged in ascending order is 27. Find x. 13, 15, 17, 21, x + 2, x + 4, 32, 37, 41 and 48

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Statistics

## If the mean of the following distribution is 6, find the value of p. x 2 4 6 10 p + 5 f 3 2 3 1 2

**Topperlearning User**9th December 2013, 10:55 AM

### CBSE - IX - Mathematics - Statistics

## Find the missing frequencies f1 and f2 in the following frequency distribution, if it is known that the mean of the distribution is 1.46 x1 0 1 2 3 4 5 Total f1 46 f1 f2 25 10 5 200

**Topperlearning User**9th December 2013, 10:52 AM

### CBSE - IX - Mathematics - Statistics

## The mean of the following distribution is 50. xi 10 30 50 70 90 fi 17 5a + 3 32 7a - 11 19 Find the value of a.

**Topperlearning User**9th December 2013, 10:36 AM

### CBSE - IX - Mathematics - Statistics

## The mean of the following distribution is 50. xi 10 30 50 70 90 yi 17 5p + 3 32 7p - 11 19 Find the value of p.

**Topperlearning User**9th December 2013, 10:33 AM

### CBSE - IX - Mathematics - Statistics

## Obtain the mean of the following data: Variable (xi) 4 6 8 10 12 Frequency (fi) 4 8 14 11 3

**Topperlearning User**9th December 2013, 10:28 AM

### CBSE - IX - Mathematics - Statistics

## Find the median of the given data: 26, 56, 32, 33, 60, 17, 34, 29 and 45. If 26 is replaced by 62, find the new median.

**Topperlearning User**9th December 2013, 9:53 AM

### CBSE - IX - Mathematics - Statistics

## Find the median of the following data: 23, 31, 47, 46, 27, 37, 30, 24.

**Topperlearning User**9th December 2013, 9:50 AM

### CBSE - IX - Mathematics - Statistics

## The median of following observations, arranged in ascending order, is 25. Find x. 11, 13, 15, 19, x + 2, x + 4, 30, 35, 39, 46.

**Topperlearning User**9th December 2013, 9:48 AM

### CBSE - IX - Mathematics - Statistics

## The mode of the data 12, 22, 12, 13, 18, 28, 12, 18, 13, 18, x is 18. So what is the value of that x can take?

**Topperlearning User**9th December 2013, 9:44 AM

### CBSE - IX - Mathematics - Statistics

## Find the median of 34, 32, x, x - 1, 19, 15, 11 where x is the mean of 10, 20, 30, 40, 50.

**Topperlearning User**9th December 2013, 9:39 AM

### CBSE - IX - Mathematics - Statistics

## Give one example of a situation in which(i) The mean is an appropriate measure of central tendency(ii) The mean is not an appropriate measure of central tendency but the median is an appropriate measure of central tendency

**Topperlearning User**9th December 2013, 9:31 AM

### CBSE - IX - Mathematics - Statistics

## If the mean of 10, 12, 18, 11, p and 19 is 15, find the value of p.

**Topperlearning User**9th December 2013, 8:42 AM

### CBSE - IX - Mathematics - Statistics

## Find the mean of factors of 24.

**Topperlearning User**9th December 2013, 8:40 AM

### CBSE - IX - Mathematics - Statistics

## If mean of 8, 6, 7, P and 9 is 7. Find the value of P.

**Topperlearning User**9th December 2013, 8:38 AM

### CBSE - IX - Mathematics - Statistics

## Find the mean of the first ten prime numbers.

**Topperlearning User**9th December 2013, 8:37 AM

### CBSE - IX - Mathematics - Statistics

## Find the median of the following data: 15, 35, 18, 27, 19, 23, 29, 20, 28

**Topperlearning User**9th December 2013, 8:36 AM

### CBSE - IX - Mathematics - Statistics

## If median of 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95 (arranged in ascending order) is 63, find x.

**Topperlearning User**9th December 2013, 8:34 AM

### CBSE - IX - Mathematics - Statistics

## Find the mean of first 10 prime numbers.

**Topperlearning User**9th December 2013, 8:30 AM

### CBSE - IX - Mathematics - Statistics

## Find the mean of first 10 odd numbers.

**Topperlearning User**9th December 2013, 8:29 AM

### CBSE - IX - Mathematics - Statistics

## Find the median of the following data:3, 13, 9, 5, 21, 23, 23, 40, 23, 14, 12, 46, 22, 29.

**Topperlearning User**9th December 2013, 8:24 AM

### CBSE - IX - Mathematics - Statistics

## The monthly salary (in thousand rupees) of 50 workers in a factory are given below: Salary (in thousand Rupees) 5.2 6.9 8.2 10.5 12.2 14.0 No. of workers 8 9 10 12 6 5 Find the mean salary of a worker.

**Topperlearning User**9th December 2013, 8:19 AM

### CBSE - IX - Mathematics - Statistics

## The following data has been arranged in ascending order: 12, 14, 17, 20, 22, x, 26, 28, 32, 36. If the median of the data is 23, find x. In the above data, if 32 is replaced with 23, find the new median.

**Topperlearning User**9th December 2013, 12:57 AM

### CBSE - IX - Mathematics - Statistics

## The mean of 10 observation is 20. If nine observations are 16, 20, 18, 17, 22, 16, 15, 20, 17; find the tenth observation.

**Topperlearning User**9th December 2013, 12:25 AM

### CBSE - IX - Mathematics - Statistics

## Find the mean of the following frequency distribution showing the marks obtained in a class test by 20 students. Marks 10 15 20 25 No. of students 4 5 8 3

**Topperlearning User**8th December 2013, 11:08 PM