Question

Choose the correct answer.. i need the last answer ..

1. At one college, GPA’s are normally distributed with a mean of 2.6 and a standard deviation of 0.4. According to empirical rule, What percentage of students at the college have a GPA between 1.8 and 3.4?

a. 99.7%

b. 68%

c.84.13%

d. 95%

2. If a person is randomly selected, find the probability that his or her birthday is not in December. Ignore leap years.2.

a. 31/334

b. 11/12

c. 31/335

d. 334/365

3. Which of the four levels of measurement is most appropriate for temperatures of the ocean at various depths?3.

a. Nominal

b. Ordinal

c.Ratio

d. Interval

Answer 1