1
Stat 2000 International โ Sample Midterm โ Solutions
1. The answer is: a) Determining the difference between a plot with r = 1 and r = .95. [For r = 1,
all points fall exactly on an increasing line, for r = .95, points are close to an increasing line but
not all on this line.]
2. b) heart disease
3. d) All of the above
4. The analysis of the graph indicates that the histogram is not what you would expect to observe
if the coins are fair. The histogram indicates an unusually large number of heads.
5. d) All of the above
6. c) .97
7. c) 47
8. d) The probability of the other is changed
9. 23.0%
10. b) This is a theoretical probability, since a Punnett square was used to determine the
probabilities.
11. b) systematic sample
