A jar contains 50 balls numbered 1 to 50. a. How many different sets of 5 balls can be randomly taken from the jar?

The answer is

b. How many different sets of 5 balls containing the ball numbered 42 can be taken from
the jar?

The answer is

Give your probabilities in simplified fraction form. Hint: look at the factorial forms of
part a and part b.

c. What is the probability that a 5–ball set will contain the ball numbered 42?

The answer is

d. What is the probability that a 5–ball set will not contain the ball numbered 42?

The answer is

Given: quadrilateral talk is a parallelogram. prove: ta congruent lk and al congruent kt

What is the solution of log2  (3x  -  7)  =  3? 4 5

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?