Question

10. What does a z-score tell you?



11. In a continuous probability distribution, what does the area under the curve represent?


12. Mark is deciding which route to take to class. His choices are I = the Interstate and F = Fifth Street. P(I) = 0.44 and P(F) = 0.56 P(I AND F) = 0 because Mark will take only one route to work. What is the probability of P(I OR F)?



13. Assume you have a binomial distribution. In an experiment with 100 trials and a probability of a success equal to one half, what is the mean and standard deviation?




14. State whether the following meet the criteria for a Binomial Distribution. Provide an explanation for your answer.
• There are 60 or 70 trials.
• Each trial has two possible outcomes.
• Trials are independent of each other.
• The probabilities for each trial vary.




15. State whether the following meet the criteria for a Binomial Distribution. Provide an explanation for your answer.

• There are 100 trials.
• Each trial has three possible outcomes.
• Outcomes two and four depend on each other.
• Each trial has constant probabilities.

Answer 1