Review Exercises
Average and Standard Deviation
Chapter 4, FPP, p. 74-76
Dr. McGahagan
Problem 1. Basic calculations. Find the mean, median, and SD of the list x = (50 41 48 54 57 50)
Mean = (sum x) / 6 = 300 / 6 = 50
Median = 50. Note that the list must
Chapter 3 - Review Exercises
Statistics 1040 - Dr. McGahagan
Problem 4. Histogram of Blood Pressure.
Guess at the densities (the height of each bar), then multiply by the base to find the area = percent of values
contained in that bar.
Limits
90-100
100-1
Chapter 3 - Review Exercises
Statistics 1040 - Dr. McGahagan
Problem 1. Histogram of male heights.
Shaded area shows percentage of men between 66 and 72 inches in height; this translates as
"66 inches OR more, AND less than 72 inches." Note that since the
Review Exercises
Normal Approximation to Data
Chapter 5, FPP, p. 93-96
Dr. McGahagan
Problem 1. Test scores and the normal approximation.
Given: Mean = 50, SD = 10
A 1.25 SD interval around the mean = 50 +/- 12.5 = 37.5 to 62.5
Using the normal tables fro
Review Exercises
Chapter 6 - Measurement Error
Pages 104-108
REVIEW EXERCISES (page 104)
Problem 1. Do you only need to measure once?
Answer: NO, no matter how experienced you are. You will NOT get the same result both times:
try it yourself - measure the
Statistics 1040
Summer 2009
Exam I
NAME_
Point score_ Curved Score_
Each question is worth 7 points. There are 15 questions, so a total of 105 points.
No credit will be given unless your answer in clearly explained and/or all calculations shown.
1. What d