Answer:
option a
Step-by-step explanation:
given that at a large Midwestern college, 4 % 4% of the students are Hispanic.
A random sample of 20 students from the college is selected.
We have each student is independent of the other to be hispanic
p = success = being hispanic = 0.04 while
q = failure = being non hispanic = 0.96
X - no of hispanics is thus binomial with p = 0.04 and n =20 (sample size)
Since X is binomial
Var(x) = npq = 0.768
Std dev (x) = Square root of variance = 
rounded off it gives 0.88
So option a is right
Answer:
I got you. The answer is 42
Step-by-step explanation:
First, you find the area of the big rectangle as if the missing piece wasn't there. So do 5 x 10 which is 50 cm. Then you calculate the area of the second rectangle (aka the missing piece). The dimensions of the missing piece is 2 x 4. 2 x 4 = 8, so the missing piece has an area of 8 cm. Finally, you subtract the area of the missing piece from the area of the shape.
50 - 8 = 42
The area of the shape is 42 cm.
Hope this helps
You basically just switch it around and subtract the fractions
It would be 3,600 - 30 = 3570
You have to add them all together and times that by 60%, when you get 13.8 that's the answer and to prove it, subtract 23-13.8 and you get 9.2 and that's 40%
