Answer: 8.22
Step-by-step explanation:
For any binomial event , the formula to calculate the standard deviation of the possible outcomes is given by :-
, where p is the probability of success and n is the number of trials.
Given: The probability of success p = 0.1
The number of trials = 750
Now, the standard deviation of the possible outcomes will be :-
Answer:
D
diameter of 1 circle = 21.3/3= 7.1
radius of 1 circle= 7.1/3=3.55
area of 1 circle =πr^2=3.14× (3.55)^2=39.57
area of 3 circle= 39.57×3=118.72
therefore,area of shaded portion= area of 3 circle =118.72
here u go
hope you can understand my handwriting