Answer:
0.7734 or 77.34 percent
Step-by-step explanation:
If the area under the Standard Normal curve to the right of a z value is 0.75, then the area under the curve to the left of that z value is 0.25. Using a Standard Normal (z) table, look up 0.2500 among the probabilities. The area closest to 0.2500 is 0.2514. The z value associated with this is -0.67.
The probability of a randomly selected z is greater than -0.67 is approximately 0.75.
A z-score measures exactly how many standard deviations above or below the mean a data point is.
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