Wellcome!

Question 1. Asked on :30 September 2019:09:57:06 AM

#### What is MEdian?

-Added by Akki chauhan Mathematics » STATISTICS

priyanshu kumar
Median - The median is the middle number of the data set. It is exactly like it sounds. To figure out the median you put all the numbers in order (highest to lowest or lowest to highest) and then pick the middle number. If there is an odd number of data points, then you will have just one middle number. If there is an even number of data points, then you need to pick the two middle numbers, add them together, and divide by two. That number will be your median.

-Answered by priyanshu kumar On 30 September 2019:10:49:27 AM

Question 2. Asked on :30 September 2019:09:56:38 AM

#### What is Mean?

-Added by Akki chauhan Mathematics » STATISTICS

priyanshu kumar
Mean - When people say "average" they usually are talking about the mean. You can figure out the mean by adding up all the numbers in the data and then dividing by the number of numbers. For example, if you have 12 numbers, you add them up and divide by 12. This would give you the mean of the data.

-Answered by priyanshu kumar On 30 September 2019:10:50:00 AM

Question 3. Asked on :19 January 2019:10:22:48 AM

#### On tossing a coin 1000 times head comes 425 times find the probability of getting a tails in this event.

-Added by Prince Rawat Mathematics » STATISTICS

Master Purushottam

Total no. of times tossing a coin= 1000

no. of tail comes= 1000-425= 575

probability   p(e)= 575/1000

-Answered by Master Purushottam On 24 August 2019:12:18:13 AM

Master Purushottam

Let 'x' be the number of boys and 'y' be the number of girls.

To find the total marks

The total marks of boys = 42x

The total marks of girls = 45y

Total number of boys and girls = x + y

To find the ratio

The total marks of boys and girls = 44(x + y)

Then we can write

44(x + y) = 42x + 45y

44x + 44y = 42x + 45y

2x = y

x/y = 1/2

Therefore the ratio of the number of boys to the number of girls is 1:2

-Answered by Master Purushottam On 23 August 2019:11:37:42 PM

Question 5. Asked on :11 January 2019:02:55:18 PM

#### Find the median of first 10 prime numbers.

-Added by Prince Rawat Mathematics » STATISTICS

Shivang Gupta

The first 10 prime numbers are : 2,3,5,7,11,13,17,19,23 and 29.

n=10

Median if n is even numbers

n2 th term = 5th term = 11

n2 + 1 = 5 + 1 = 6th term = 13

Median = 5th term + 6th term2

Median = 11 + 132

-Answered by Shivang Gupta On 25 August 2019:03:29:06 PM

Question 6. Asked on :11 January 2019:10:18:43 AM

#### Define frequency of the observation.

-Added by Prince Rawat Mathematics » STATISTICS

Nishant Verma
The number of times of an observation occurs in the given data is called the frequency of the observation.

-Answered by Nishant Verma On 17 October 2019:02:42:20 PM

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