Estimate the area percentage under a normal curve to the left of a z-score of −0.4 .(1 point)

Answer 1

To estimate the area under the normal curve to the left of a z-score of -0.4, we can use a standard normal distribution table or calculator.

From a standard normal distribution table, we find that the area to the left of a z-score of -0.4 is approximately 0.3446. This means that approximately 34.46% of the area under the normal curve lies to the left of a z-score of -0.4.

Therefore, the estimated area percentage under the normal curve to the left of a z-score of -0.4 is approximately 34.46%.