The number of throws that the player make X follows binomial distribution.
The probability that the player makes x throws out of eleven throws is
![P(X=x)=C(x,11)0.5^x(0.5)^{11-x}=C(x,11)0.5^{11}](https://tex.z-dn.net/?f=%20P%28X%3Dx%29%3DC%28x%2C11%290.5%5Ex%280.5%29%5E%7B11-x%7D%3DC%28x%2C11%290.5%5E%7B11%7D%20)
The probability that the player makes at most nine out of eleven free throws
is
![\sum_{x=0}^9C(x,11)0.5^{11}=1-\sum_{x=10}^{11}C(x,11)0.5^{11}\\ =1-C(10,11)0.5^{11}-C(11,11)0.5^{11}=1-\frac{12}{2^{11}} \\ =1-\frac{3}{512} =\frac{509}{512}](https://tex.z-dn.net/?f=%20%5Csum_%7Bx%3D0%7D%5E9C%28x%2C11%290.5%5E%7B11%7D%3D1-%5Csum_%7Bx%3D10%7D%5E%7B11%7DC%28x%2C11%290.5%5E%7B11%7D%5C%5C%20%3D1-C%2810%2C11%290.5%5E%7B11%7D-C%2811%2C11%290.5%5E%7B11%7D%3D1-%5Cfrac%7B12%7D%7B2%5E%7B11%7D%7D%20%5C%5C%20%3D1-%5Cfrac%7B3%7D%7B512%7D%20%3D%5Cfrac%7B509%7D%7B512%7D%20%20)
Correct choice is (B).
Answer:
90x^2+134x+48
Step-by-step explanation:
To get the area of a classroom you just multiply the length times the width
Answer:
(28n²+13n+4) ÷ (7n+5) = 4n-1 remainder 9
Step-by-step explanation:
Answer: 3/5
Step-by-step explanation:
Out of 5 school days, Janna and Anthony walk home on Monday, Wednesday and Friday.
This means they walk home on 3 days out of 5.
The fraction of time they walk home from school is;
= 3/5
Answer:
It is the letter A
Step-by-step explanation:
To find the perimeter you need to add all the sides. Since the width of the rectangle is 2 feet, you need to add it to another 2 since they have two equal sides. DO the same with 18 inches which is the length.