Answer:
The probability of selecting a z score less than 1.81 is 0.9649 or 96.49%
Explanation:
Z score represents the number of standard deviations that the score is either above or below the mean.
If the Z score is 0, the score is identical to the mean score. Hence its probability becomes 50% as equal parts of score are below the mean and above the mean.
As here the z score is given to be 1.81, from the Z score table we get,
