Question

Your class took a test where the class average was an 87 with a standard deviation of 14. If you are in the 12th percentile, your score would be approximately:

a) 68.16

b) 71.44

c) 74.72

d) 78.00

Answer 1

To determine your score if you are in the 12th percentile, you can use a z-score table. Your score would be approximately 71.44 (b).

Step-by-step explanation:

To determine your score if you are in the 12th percentile, you can use a z-score table. Start by finding the z-score that corresponds to a percentile of 12. In this case, the z-score is approximately -1.18. Now, use the formula: score = (z-score x standard deviation) + mean. Substituting the values, the score is approximately 71.44.

Therefore, your score would be approximately 71.44 (b).