Question

Find the probabilities on a standard normal curve P(z<0.45)

Answer 1

$P(Z<0.45)=P(-\infty <Z<0)+P(0< Z<0.45)$

$=0.5+P(0<Z<0.45)$

$=0.5+0.1736$ [ from standard normal distribution table]

$=0.6736$