The county highway department recorded the following probabilities for the number of accidents per day on a certain freeway for one month. The number of accidents per day and their corresponding probabilities are shown. Find the mean, variance, and standard deviation.
Answer to relevant QuestionsA concerned parents group determined the number of commercials shown in each of five children’s programs over a period of time. Find the mean, variance, and standard deviation for the distribution shown. R. H. Bruskin Associates Market Research found that 40% of Americans do not think that having a college education is important to succeed in the business world. If a random sample of five Americans is selected, find these ...Compute the probability of X successes, using the binomial formula. a. n = 6, X = 3, p = 0.03 b. n = 4, X = 2, p = 0.18 c. n = 5, X = 3, p = 0.63 d. n = 9, X = 0, p = 0.42 e. n = 10, X = 5, p = 0.37 A mail-order company receives an average of 5 orders per 500 solicitations. If it sends out 100 advertisements, find the probability of receiving at least 2 orders. A game is set up as follows: All the diamonds are removed from a deck of cards, and these 13 cards are placed in a bag. The cards are mixed up, and then one card is chosen at random (and then replaced). The player wins ...
Post your question