Consider two independent tosses of a fair coin. let a be the event that the first toss results in heads, let b be the event that the second toss results in heads, and let c be the event that in both tosses the coin lands on the same side. show that the events a, b, and c are pairwise independent—that is, a and b are independent, a and c are independent, and b and c are independent—but not independent.

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

This circle is centered at the origin, and the length of its radius is 6. what is the circle's equation? a. x^2+y^2=36 b x^2+y^2=6 c x+y=36 d x^6+y^6=1