Answer:
Explanation:
Assuming you have access to the standard normal distribution table, you can use the normalcdf function on a graphing calculator to find the probability that a data value in a normal distribution is between a z-score of 0.18 and 1.99.
To use the normalcdf function, you need to enter the lower and upper bounds of the z-score range, as well as the mean and standard deviation of the normal distribution.
Assuming the mean is 0 and the standard deviation is 1 (since we are dealing with the standard normal distribution), the expression to enter into the calculator would be:
normalcdf(0.18, 1.99, 0, 1)
This will return the probability that a data value in the normal distribution is between the z-scores of 0.18 and 1.99.