00:01
Hello, good morning students.
00:02
In this question, we have to choose the correct option.
00:05
So, first of all we have to know about the standard deviation and standard error.
00:09
Standard deviation denotes the variability between the sample and standard error denotes the variability among the sample means from population.
00:17
So, the question is that standard deviation increases.
00:20
If standard deviation increases, then what about the standard error? so, we know that sample size increases, then standard error decreases.
00:30
As the sample size gets closer to the true size of the population, the sample means clusters more and more around the true population mean.
00:37
The standard error of sample mean depends upon both standard deviation and sample size.
00:45
And by the simple relation, we can say that standard error equal to standard deviation by square root of n.
00:58
So, here n is the sample size.
01:03
Through graph, we can understand better about standard deviation and standard error.
01:10
So, first of all we have to draw a bell -shaped curve...