1. (Lesson 1) In a systematic sequence, it is impossible to predict the next observations
from previous observations.
2. (Lesson 1) In a random sequence,
it is always possible to predict the next value in the sequence.
3. (Lesson 2) The graph that describes the distribution
of a random sequence is called a _______________.
4. (Lesson 2) The histogram for a normal distribution has the shape of a _____.
5. (Lesson 3) Given a set of data, only one specific histogram is correct for the data.
6. (Lesson 3) Divide the range of scores by 10. This is a rule of thumb
for determining what?
7. (Lesson 4) What is the range of these numbers?
-5 -3 -1
8. (Lesson 4) What is the mean of the following numbers?
5, 6, 6, 7
9. (Lesson 5) Can the SD ever be a negative value?
10. (Lesson 5) Which set of numbers has the SD equal to zero?
I: 1 3 5 7
II: 5 5 5 5
11. (Lesson 6) The mean and SD of a set of numbers is 40.0 and 10,respectively.
Each number in the set is multiplied by 5. The new mean and SD is
12. (Lesson 6) The mean and SD of a set of numbers is 33.0 and 30,respectively.
Each number in the set is increased by 5. (5 is added to each number)
The new mean and SD are
13. (Lesson 7) If scores on an extroversion scale were collected for all 8th graders in a middle school,
what percent of their scores would be expected to fall between +1 and -1 standard deviations from the mean?
14. (Lesson 7) The mean of a set of scores equals
15. (Lesson 8) What is the median for the set of scores below?
2, 4, 6, 8, 15
16. (Lesson 8) What is the median for the set of scores below?
2, 4, 6, 8, 15, 33, 56
17. (Lesson 9) That a set of scores is skewed to the right (toward higher scores)
means that
18. (Lesson 9) The __________ is the balance point or center of gravity of a set of scores.
19. (Lesson 10) Calculate the % of the patients in a study who had IQ scores 120
and above. The scores were 102, 104, 106, 107, 110, 115, 120, 121, 122, 125
20. (Lesson 10) A ______________ often is used to graphically illustrate
the results of research using percents to illustrate various outcomes.
