Chaptee 4 the ε o many ermhs o5. have a.) esoctly 15 inversions b)exactly 14 inversions c.) exactly 13 inversions r b soluhons: how many permutation have exactly 15 inversions, 14,13. unerent permutations have different inversion sequences. theorem 4.2.1 let b, b n be a sequence of integers satisfying then there erists a unique permutation of 2.) whose inversion sequence is bi, b,bn proof. we describe two methnds 6 i don't understand how to get the following solutions for the inversion questions.

We just started the introduction into circles and i have no idea how to do this.

Factor the polynomial. b^2 + 4b + 4

Arecent study focused on the number of times men and women who live alone buy take-out dinner in a month. assume that the distributions follow the normal probability distribution and the population standard deviations are equal. the information is summarized below. statistic men women sample mean 24.85 21.33 sample standard deviation 5.54 4.93 sample size 34 36 at the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month? state the decision rule for 0.01 significance level: h0: μmen= μwomen h1: μmen ≠ μwomen. (negative amounts should be indicated by a minus sign. round your answers to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? what is the p-value? (round your answer to 3 decimal places.)