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45 Human Resource major students and 25 Culinary Arts major students had arrived.

Hello. Can anybody help me with these 6 example questions that were created. I want to use them as a study guide.

1. 45 Human Resource major students and 25 Culinary Arts major students had arrived. What is the empirical probability that the next student to come will be a Human Resource Major?

2. A box contains four red, three blue, and six green marbles. One marble is randomly selected from the box. Find the probability that the selected marble is yellow?

3. The mean of a set of data is 5.07 and its standard deviation is 3.39. Find the Z-score for value of 9.65.

4. A box contains four red, three blue, and six green marbles. One marble is randomly selected from the box. Find the probability that the selected marble is not blue.

5. A box contains four red, three blue, and six green marbles. One marble is randomly selected from the box. Find the probability that the selected marble is blue or green.

6. A multiple choice test allows answers of A,B,C,D,E for each question. A student answers 10 questions by making random guess.

A. Find the probability that the first answer is correct.
B. Fin the probability that all ten answers are wrong.

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This solution is comprised of a detailed explanation to answer what is the empirical probability that the next student to come will be a Human Resource Major.

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