please answer as many as possible. a thumb up will be given

1) Suppose there are 10 coins, eight of which are fair and two double-headed. A coin is chosen at random and Hipped twice and both times a head shows. What is the probability the coin is double-headed? 2) An airline finds that each passenger who reserves a seat fails to turn up with probability 1/10, independent of other passengers. The airline sells 20 tickets for their 18 seat airplane. What is the probability they do not have enough seats? 3) You are surveying a plot of land but, due to measurement error, the dimensions are imprecise. The measured length is X with sx = 300.0x = 15 and the width is Y with fy = 200.0y = 10, independent of each other. What is the expected value and standard deviation for the area of the plot of land? 4) Let A be the event a random family owns a BMW (car) and B be the event they own a Honda. P(A) P(B) = 6, P(AUB) - 7 a) What is the probability they own both of these cars? b) What is the probability they own neither of these cars? c) Given they own a BMW, what is the probability they also own a Honda? 1) Suppose there are 10 coins, eight of which are fair and two double-headed. A coin is chosen at random and Hipped twice and both times a head shows. What is the probability the coin is double-headed? 2) An airline finds that each passenger who reserves a seat fails to turn up with probability 1/10, independent of other passengers. The airline sells 20 tickets for their 18 seat airplane. What is the probability they do not have enough seats? 3) You are surveying a plot of land but, due to measurement error, the dimensions are imprecise. The measured length is X with sx = 300.0x = 15 and the width is Y with fy = 200.0y = 10, independent of each other. What is the expected value and standard deviation for the area of the plot of land? 4) Let A be the event a random family owns a BMW (car) and B be the event they own a Honda. P(A) P(B) = 6, P(AUB) - 7 a) What is the probability they own both of these cars? b) What is the probability they own neither of these cars? c) Given they own a BMW, what is the probability they also own a Honda