4.
Which of the following best describes the shape of the histogram at the left?
a. Approximately normal
b. Skewed left
c. Skewed right
d. Approximately normal with an outlier
e. Symmetric
The probability is 0.2 that a value selected at random from a normal distribution with mean 600 and
standard deviation 15 will be above what number?
a. 0.84
b. 603.80
c. 612.6
d. 587.4
e. 618.8
- Which of the following are examples of continuous data?
I. The speed your car goes
II. The number of outcomes of a binomial experiment
III. The average temperature in San Francisco
IV. The wingspan of a bird
V. The jersey numbers of a football team
a. I, III, and IV only
b. II and V only
c. I, III, and V only
d. II, III, and IV only
e. I, II, and IV only
Use the following computer output for a least-squares regression for Questions 7 and 8.