Here you go I hope this helps.
There are (5 C 1) = 5! / (5 - 1)! = 5 ways of drawing a red marble, and (11 C 1) = 11! / (11 - 1)! = 11 ways of drawing any marble, so that the probability of drawing a red marble is 5/11.
After putting back the first marble, the probability of drawing another red is again 5/11.
So the probability of drawing 2 red marbles with replacement is (5/11)² = 25/121.
1) 200x10=2000 then 1/10 = 200
2) 10x10=100= then 1/10 = 10
3) 700x10= 7000 then 1/10 = 700
4) 5000x10=50000 then 1/10 = 5000 Hopefully that helps you ❤
Answer: 2.71
Step-by-step explanation:
We know that the formula to calculate the standard error is given by :-
, where 
is the standard deviation and 'n' is the sample size.
Given : Standard deviation : 
Sample size : 
Then , the standard error of the mean is given by :-
Hence, the standard error of the mean = 2.71
