Arecent report stated that 10% (0.10) of all men in the u. s. are left-handed. a random sample of 250 men is selected to further study this question, a. what is the shape, mean (expected value) and standard deviation of the sampling distribution of the sample proportion for samples of size 250? b. what is the probability that the sample proportion for a sample of size 250 is greater than 12% (0.12)? c. what is the probability that the sample proportion for a sample of size 250 is between 13% (0.13) and 15% (0.15)?

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

A.s.a.! this is a similarity in right triangles. next (solve for x)a.) 12b.) 5c.) 12.5d.) [tex] 6\sqrt{3} [/tex]

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true