1. (Lesson 1) In a random sequence,
it is always possible to predict the next value in the sequence.
2. (Lesson 1) In a systematic sequence, it is impossible to predict the next observations
from previous observations.
3. (Lesson 2) Judy tosses 5 coins and records the number of heads.
What is the range of possible outcomes?
4. (Lesson 2) Bob recorded the rain fall in inches each month for 10 years
and then constructed a histogram from this sequence of numbers.
What information does this histogram NOT show?
5. (Lesson 3) Given a set of data, only one specific histogram is correct for the data.
6. (Lesson 3) Scores on a test range from 55 to 100. 200 students took the test.
What would be a good interval size for a histogram?
7. (Lesson 4) Which group is expected to have the greater range of salaries?
I: All employees at Microsoft
II: All teachers in Boston schools
8. (Lesson 4) To share 9 pieces of candy among 6 kids, how many
pieces should each kid get? Assume you want to be fair.
9. (Lesson 5) Which set of numbers has the greater SD?
I: -10 +10
II: 100 120
10. (Lesson 5) The standard deviation, SD, of a set of numbers
is the r.m.s. value of the _________ from the mean.
11. (Lesson 6) The mean and SD of a set of numbers is 20.0 and 5,respectively.
Each number in the set is multiplied by 0.
The new mean and SD is
12. (Lesson 6) The mean and SD of a set of numbers is 23.0 and 5,respectively.
Each number in the set is multiplied by -2. The new mean and SD are
13. (Lesson 7) A person whose score on an IQ test was over 2 SDs
above the mean score on the test would be
14. (Lesson 7) The percent of college students' weights that are expected
to fall within 2 standard deviations above or below the mean is about
15. (Lesson 8) What is the 75th percentile for the set of scores below?
2, 5, 6, 7, 9, 10, 23, 25, 55
16. (Lesson 8) What is the median for the set of scores below?
2, 4, 6, 8
17. (Lesson 9) The __________ is the balance point or center of gravity of a set of scores.
18. (Lesson 9) The sum of the deviations less than the ______________ is equal
to the sum of the deviations greater than the ____________.
19. (Lesson 10) A ______________ often is used to graphically illustrate
the results of research using percents to illustrate various outcomes.
20. (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
