Final answer:
To find the probability of obtaining a z value between -1.6 and 1.3 in a standard normal distribution, we can use the z-table to calculate the area under the curve between these two z-scores. The probability is 0.8484.
Step-by-step explanation:
To find the probability of obtaining a z value between -1.6 and 1.3 in a standard normal distribution, we need to calculate the area under the curve between these two z-scores.
We can use the z-table to find the areas to the left of each z-score. The area to the left of -1.6 is 0.0548 and the area to the left of 1.3 is 0.9032. The difference between these two areas is 0.9032 - 0.0548 = 0.8484. Therefore, the probability is 0.8484. The correct answer is d. 0.8484.