Z-score (15 points) If Z is standard normal variable use the table of standard normal probabilities to find and draw the diagram. a) P (z 2.25)
and
Suppose that the average u number of accidents occurring weekly on a particular highway equal 2.
a) What is the probability that within next week 0 accident occur?
P(x=0)-?
b) What probability that within next week 1 or more accident occur or you can say at least 1
accident occur?
P(x1)-?