X1,X2,X3, and X4 are normally distributed random variables: X1N(0,0),X2N(0,1),X3N(1,0), and x4N(1,1). The variable(s) which follow(s) a standard normal distribution is (are) Y1,Y2, and Y3 are normally distributed random variables. Use the normal cumulative distribution function to answer the following questions. If Y1N(5,9),Pr(Y15.5)= If Y2N(15,25),Pr(Y2>10)= If Y3N(28,16),Pr(20Y340)= (Round your answers to four decimal places.)