Question

The mean score on a quiz is 80, with a standard deviation of 8. What is the probability that a randomly selected student scored below 73 on the quiz? (1 point) The probability that a randomly selected student scored below 73 is

Answer 1

[AI-generated answer — Bot GPT 3.5]

0.2743, or 27.43%.

To find this probability, we first need to find the z-score for a score of 73:

z = (x - μ) / σ
z = (73 - 80) / 8
z = -0.875

Next, we look up the z-score in a standard normal distribution table or use a calculator to find the probability that a z-score is less than -0.875. This probability is 0.1908.

Therefore, the probability that a randomly selected student scored below 73 on the quiz is 0.1908, or 19.08%.