00:02
Hello students, let's do this question.
00:03
In this question, we have to calculate the mean, median and standard deviation.
00:11
First of all, let's calculate the mean.
00:14
The formula for calculating the mean we know is summation of xi upon n.
00:23
And here, by summing up all the values given to us, that is 3 .5.
00:33
Plus 20 .2 up to 28 .9 divided by 6 and by solving it we will get our mean as 21 .05.
00:55
So here the value of our mean is 21 .05.
01:05
Now moving on to the median as this.
01:17
This is an even series, so here the formula will be n1 plus n2 divided by 2.
01:26
N1 and n2 here are the middle values.
01:30
So by taking the sum of middle values that are 20...