Suppose Z is a random variable having the standard normal distribution.

1)Find the probability that Z is between 0 and (1.08 + R/10)

2)P(–w < Z < w) = 0.8942 - R/50, Find the values of w

My Answer:

P(0<Z<1.08+R/10)

=P(Z<(1.08-0)/1)

=P(Z<1.08)

=0.5+0.3599

=0.8599

is this correct?