1.The scores on the exam public health professionals take to be certified follows a normal distribution with a mean score of 75 points and a standard deviation of 7 points.

What is the probability someone scores 78.5 or less on the exam?

Round your answer to 4 decimal places.

2The scores on the exam public health professionals take to be certified follows a normal distribution with a mean score of 75 points and a standard deviation of 7 points.

What is the probability someone scores exact 71.5 on the exam?

Round your answer to 4 decimal places.

3.There is a .65 probability of someone passing the certification exam for public health professionals. 3 recent graduates from USF COPH take the exam.Let X be the number of the 3 graduates who pass the certification exam. One student passing the exam does not influence if another student passes the exam.

What is the probability that 2 or fewer of the 3 students pass the exam?

Round your answer to 4 decimal places.