Stat 300
Exam 1 Study Guide (Chapters 1 & 2)
100 Points
Weights indicated by [ ]
Questions #1 – 8
Chapter 1 [8]
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Questions 9 [3]
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Question 10 [3]
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Question 11 [2]
Question 12 [2]
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Question 13 [1]
Question 14 [14]
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Question 15 [2]
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Question 16 [3]
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Question 17 [2]
Question 18 [4]
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Question 19 [2]
Question 20 [3]
Question 21 [2]
Question 22 [1]
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Questions 23 [4]
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vocabulary
abuses of statistics
characteristics of data (effects of
extreme values)
Calculate relative & cumulative
frequency
Calculate mean (formula and
calculator) and standard deviation
(calculator) from a frequency table
Construct freq. table from raw data
Construct a histogram and
frequency polygon
Construct a dot plot
Calculate or find mean, std, dev.,
mode, median, midrange, range
and variance.
Find data value given percentile
Find unusual values from mean
and std. dev.
Calculate z-score and use it to
determine unusual values
Construct stem-leaf plot
Use the empirical rule and
Chebyshev’s theorem
Construct Pareto / Pie charts
Use z-score to compare scores
Find percentile given data value
Characteristics of z-scores
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Review chapter 1 problem set
and slides
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Review section 2.1 #1
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Review section 2.2 #7
Review section 2.4 #8
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Review section 2.1 #2
Review section 2.2 #3
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Review section 2.2 #5b
Review section 2.3 #2,
Review section 2.4 #2
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Review section 2.5 #17 & #21
Review section 2.4 #9
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Review section 2.5 #3
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Review section 2.2 #6
Review section 2.4 #10 & #11
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Review section 2.2 #4
Review section 2.5 #9
.Review section 2.5 #10
Review notes
Find correlation and line of best
fit. Use line of best fit to predict a
value.
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Review section 2.6 #2
See next page for vocabulary and formulas to know.
Vocabulary
statistics
population
sample
parameter
statistic
discrete data
continuous data
random sample
descriptive statistics
inferential statistics
frequency table
frequency
lower class limits
upper class limits
class boundaries
class midpoints
class width
relative frequencies
cumulative frequency
frequency histogram
cumulative frequency histogram
frequency polygon
cumulative frequency polygon (OGIVE)
dot plot
stem-and-leaf plot
Pareto chart
pie chart
Scatter diagram
mean – median – mode – midrange
range – variance – standard deviation
empirical rule
Chebyshev’s theorem
standard or z-score
quartiles – percentiles
unusual values
Linear correlation
Line of best fit
Formulas
Mean
Median
Mode
Midrange
Mean from a frequency table
Range
Variance
Standard deviation
Standard deviation from a frequency
table.
z-score
Correlation
Slope and intercept of line of best fit
Know the mean and standard Dev of z-scores