A newsboy purchases papers at 10 cents and sells them at 15 cents. However, he is not allowed to return unsold papers. If his daily demand is a binomial random variable with n = 10, p = 1/3: (a) Suppose he buys k newspapers for some nonnegative integer k. What is the probability mass function of his profit? (b) How many papers should he purchase so as to maximize his expected profit?

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

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