The expected value of the standard normal

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The expected value of the standard normal distribution is equal to
0 Correct Answer: 0 Question 13 2 out of 2 points In a binomial distribution, for each of n trials, the event
Question 14 2 out of 2 points The area under the normal curve represents probability, and the total area under the curve sums to
Question 15 2 out of 2 points Administrators at a university are planning to offer a summer seminar. The costs of reserving a room, hiring an instructor, and bringing in the equipment amount to \$3000. Suppose that it costs \$25 per student for the administrators to provide the course materials. If we know that 20 people will attend, what price should be charged per person to break even? Note: please report the result as a whole number, rounding if necessary and omitting the decimal point.
Question 16 2 out of 2 points
Administrators at a university will charge students \$158 to attend a seminar. It costs \$2160 to reserve a room, hire an instructor, and bring in the equipment. Assume it costs \$50 per student for the administrators to provide the course materials. How many students would have to register for the seminar for the university to break even? Note: please report the result as a whole number, omitting the decimal point.