Round your final answer to three decimal places) A survey from Teenage Research Unlimited(Northbrook, Illinois) found that thirty percent of teenage consumers receive their spending money from part-time jobs. Consider ten randomly selected teenagers, and let xx denote the number among the ten who will have part-time jobs. (a) (1 point) Does xx  have a binomial or a geometric distribution? (b) (3 points) What is the probability that at most 2 of them will have part-time jobs. (c) (5 points) Find the mean, variance, and standard deviation of xx.

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(Round your final answer to three decimal places) A survey from Teenage Research Unlimited(Northbrook, Illinois) found that thirty percent of teenage consumers receive their spending money from part-time jobs. Consider ten randomly selected teenagers, and let xx denote the number among the ten who will have part-time jobs.

(a) (1 point) Does xx  have a binomial or a geometric distribution?

(b) (3 points) What is the probability that at most 2 of them will have part-time jobs.

(c) (5 points) Find the mean, variance, and standard deviation of xx.

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