Write three powers with whole number bases that have values greater than 120 and less than 130

1 answer:

7 0

Three powers with whole number bases that have values greater than 120 and less than 130 are:
11² = 11 x 11 = 121
5³ = 5 x 5 x 5 =125 
2⁷ = 2 x 2 x 2 x 2 x 2 x 2 x 2 = 128

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The Office of Student Services at UNC would like to estimate the proportion of UNC's 34,000 students who are foreign students. I

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Answer:

Mean is 3.05

Standard deviation is 1.69.

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they are foreign, or they are not. This means that we can solve this problem using concepts of the binomial probability distribution.

Binomial probability distribution

The probability of x sucesses on n repeated trials, with p probability.

In this problem, we have a sample of 50 students, so $n = 50$ . The proportion of all UNC students that are foreign students is 0.061, so $p = 0.061$ .