Do the multiplication and division first.
21 / 7 = 3
20 * 100 * 2 = 4000.
Now for the addition and subtraction. The 3 and - 3 cancel each other out.
3 + 4000 - 3 = 4000
Answer: do not know
Step-by-step explanation:
The answer is A, 651. You would first start by multiplying the number of students, 1,860, by 45%, or .45. You'd come out with the answer of 837. You would then add 837 and 372 together to get a sum of 1,209. Finally, you would subtract 1,209 from the total number of students, which was 1,860 and get an answer of 651. I hope this helped you understand how a problem like this should be worked out!
The answer is the chi square distribution. In Statistics and
probability theory, the chi distribution is a continuous
probability distribution. The chi-square distribution is a distinct
case of the gamma distribution and is one of the most extensively
used probability distributions in inferential statistics for instance, in
construction of confidence intervals or in hypothesis testing.