Suppose tori has an unfair coin which lands on tails with probability 0.28 when flipped. if she flips the coin 10 times, find each of the following: question 2 options: the standard deviation of the number of tails p(no more than 3 tails) the mean number of tails p(exactly 4 tails) p(at least 5 tails) p(more than 3 tails) p(no tails) p(exactly 1 tail) p(at least 1 tail) p(less than or equal to 2 tails) 1. 0.1798 2. 0.7021 3. 2.8 4. 0.1181 5. 0.1456 6. 0.0374 7. 0.9626 8. 0.2979 9. 0.4378 10. 1.42

Which of these choices show a pair of equivalent expressions?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.