To estimate the area percentage under a normal curve to the left of a z-score of 0.87, we can use a standard normal distribution table or a calculator to find the corresponding area.
Using a standard normal distribution table, we can look up the area to the left of a z-score of 0.87. The closest value we can find in the table is 0.8071, which corresponds to a z-score of 0.89. Since the standard normal distribution is symmetrical, we can estimate that the area to the left of a z-score of 0.87 is slightly less than 0.8071.
Therefore, we can estimate that the area percentage under a normal curve to the left of a z-score of 0.87 is approximately 80.71%.
Estimate the area percentage under a normal curve to the left of a z-score of 0.87
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