sqrt(1234) = 35.1283
you don't say how it should be rounded, so round off as needed
Answer:
Mean is 19.43
Standard deviation is 2.5322
Step-by-step explanation:
For each student who graduated from high school in 2012, there are only two possible outcomes. Either they have enrolled in college, or they have not. The probability of a student having enrolled in college is independent of other students. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
The standard deviation of the binomial distribution is:
67% of students who graduated from high school in 2012 enrolled in college.
This means that
Sample of 29 high school graduates
This means that
Mean
Standard deviation
Answer
n <u>< </u>14
Step-by-step explanation:
simplify 2n<28
2n/2<28/2
simplify n<14
1 (first place) out of 8 followed by 1 (second place) out of 7 followed by 1 (third place) out of 6
1/8 * 1/7 * 1/6 = 1/56 * 1/6 = 1/336
Answer: 336