A Company Surveyed 2 600 North American Airline Passengers And Reported That Approximately 65 Said That They Carry A Sm 1 (21.42 KiB) Viewed 95 times
A Company Surveyed 2 600 North American Airline Passengers And Reported That Approximately 65 Said That They Carry A Sm 2 (10.48 KiB) Viewed 95 times
A company surveyed 2,600 North American airline passengers and reported that approximately 65% said that they carry a smartphone when they travel. Suppose that the actual percentage is 65%. Consider randomly selecting six passengers and define the random variable x to be the number of the six selected passengers who travel with a smartphone. The probability distribution of x is the binomial distribution with n-6 and p = 0.65. (Use SALT. Round your answers to four decimal places.) LAUSE SALT (a) Calculate (4) Interpret this probability. O the probability that a random sample of 6 passengers will contain less than 4 passengers who travel with a smartphone O the probability that a random sample of 6 passengers will contain at least 4 passengers who travel with a smartphone O the probability that a random sample of 6 passengers will contain exactly 4 passengers who travel with a smartphone the probability that a random sample of 6 passengers will contain at most 4 passengers who travel with a smartphone O the probability that a random sample of 6 passengers will contain more than 4 passengers who travel with a smartphone (b) Calculate p(6), the probability that all six selected passengers travel with a smartphone. (c) Calculate Pix 24).
Suppose the probability distribution of x, the number of defective tires on a randomly selected car checked at a certain inspection station, is given in the following table. 3 4 p(x) 0.52 0.18 0.05 0.03 0.22 (a) Calculate the mean value of x. 1.25 (b) What is the probability that x exceeds its mean value?
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