Charles claims he can act as a random number generator. Samantha has doubts. She tells Charles to write down 50 random digits, suspecting that he won't write down 50 random digits, suspecting that Charles produces fewer zeros than the expected 10%? Samantha simulated 100 trails of choosing 50 random digits, assuming that zero has a 1/10 chance of occurring each time. The dotplot shows the number of zeros in each trial. A) Explain how the graph illustrates chance variation. B) Based on the results of the simulation, is there convincing evidence that Charles doesn't choose zero often enough when he's trying to generate random number? Explain.

List the 10 possible samples (without replacement) of size 3 3 that can be obtained from the population of five officials.

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.

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?