Computing probability values for the given data

Reference no: EM1312525

1. How many different two-person committees can be formed from a group of six people?

2. If automobile license plates consist of two letters followed by four digits, how many different possible license plates are possible if letters and numbers can be repeated?

3. Advertising claims, "Four out of five doctors surveyed recommend Try it for their patients with arthritis." Discuss why you would or would not accept this as a valid claim to product superiority.

4. A random sample of 100 students at Southern University was collected. The mean age was found to be 24.2 years, with a standard deviation of 3.4 years.

a. What percentage of students are over 27.6 years old?

b. What percentage of the students is between 20.8 and 24.2 years old?

c. If a student is selected at random from Southern University, what is the probability that he or she will be over 20.8 years old?

Reference no: EM1312525

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