question archive The probability of a new automobile having an air conditioner is 90%
The probability of a new automobile having an air conditioner is 90%
Subject:StatisticsPrice: Bought3
The probability of a new automobile having an air conditioner is 90%. A) If 12 new cars are randomly selected, find the probability that exactly 10 have air conditioning. Answer using a decimal rounded to four places. B) If 12 new cars are randomly selected, find the probability that at least 9 of them will have air conditioning. Answer using a decimal rounded to four places. C) If 250 new cars are randomly selected find the mean number with air conditioner. Round your answer to two decimal places, if necessary. D) Find the standard deviation of this binomial distribution using 250 cars. Round your answer to two decimal places, if necessary
