Final answer:
The area between z = -1.78 and z = -0.12 in a standard normal curve is approximately 0.4145.
Step-by-step explanation:
The area between z = -1.78 and z = -0.12 in a standard normal curve can be found by calculating the difference in the areas to the left of these two z-scores.
Using the Z-table, the area to the left of z = -1.78 is approximately 0.037, and the area to the left of z = -0.12 is approximately 0.4515. Therefore, the area between these two z-scores is approximately 0.4515 - 0.037 = 0.4145.