Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal places.) mean = 26; standard deviation = 3.8

P(x ≥ 30)

Question and answers are in the attached picture. you so much in advance.

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?