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:
WEll the answer is d
Step-by-step explanation:
The first (80%) mortgage has an interest rate of 4.75%, and the second (20%) mortgage has an interest rate of 7.525%. Both are 30-year fixed-rate mortgages.
Answer:
<em><u>about 23 units</u></em>
Step-by-step explanation:
Step-by-step explanation:
b=1/2hr
2hr × b = 1
2hrb = 1
to find h divide both sides by 2rb
h = 1/2rb
Answer:
30 Pages.
Step-by-step explanation:
We know that there are 60 minutes in an hour, and that 3 goes into 60 20 times (3/60 = 20). Multiply 1 1/2 x 20, and that equals 30 pages.
You can also set it up in fraction form - multiply 1.5/3 times x/60. cross multiply and solve for x. in this case x = 30.
