Answer: Mean = 2.91 and Variance = 0.087
Step-by-step explanation:
Given : The probability of a correct classification of any part p= 0.97.
The number of parts are inspected : n=3
Let the random variable X denote the number of parts that are correctly classified.
For binomial experiment , the mean and variance is given by :-
Then, the the mean and variance of X will be :-
![\mu=3(0.97)=2.91\\\\\sigma^2=np(1-p)=3(0.97)(0.03)=0.0873\approx0.087\ \ [ \text{Rounded to three decimal places}]](https://tex.z-dn.net/?f=%5Cmu%3D3%280.97%29%3D2.91%5C%5C%5C%5C%5Csigma%5E2%3Dnp%281-p%29%3D3%280.97%29%280.03%29%3D0.0873%5Capprox0.087%5C%20%5C%20%5B%20%5Ctext%7BRounded%20to%20three%20decimal%20places%7D%5D)
Answer:
thats nice??
Step-by-step explanation:
He'll spend 138.91 dollars.
First multiply 427 and 231 to find out how much square feet you need to cover. Then divide the number by 3500 to see how many bags of fertilizer you need. Since there is a remainder, he'll have to buy another bag. Then, multiply the number of bags needed with the price of each bag to get the amount of money spent.
Answer:
it's something like 6 or m=6
Step-by-step explanation:
Answer:
look for this i use socratic it tells you the work
