1. (Lesson 1) If you recorded the height of a child as she grew up,
you would get a ______________ sequence.
2. (Lesson 1) In a random sequence,
it is always possible to predict the next value in the sequence.
3. (Lesson 2) Histograms are used to describe ____________ sequences.
4. (Lesson 2) Judy tosses 5 coins and records the number of heads.
What is the range of possible outcomes?
5. (Lesson 3) Scores on a test range from 55 to 100. 200 students took the test.
A good starting point for the histogram would be ____
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 mean of the following numbers?
3, 4, 5, 6, 7
8. (Lesson 4) What is the mean of the following numbers?
5, 6, 6, 7
9. (Lesson 5) The standard deviation, SD, of a set of numbers
is the r.m.s. value of the _________ from the mean.
10. (Lesson 5) Which set of numbers has the smaller SD?
I: 1 2 3 4 5
II: 10 20 30 40 50
11. (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
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) 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 median for the set of scores below?
2, 4, 6, 8, 15
16. (Lesson 8) What is the 25th percentile for the set of scores below?
2, 5, 6, 7, 9
17. (Lesson 9) Saying that a set of scores is not skewed means that
18. (Lesson 9) The __________ is the balance point or center of gravity of a set of scores.
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
