Statistics Worksheet With Answer Key
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20Statistics
Review 1
Determine which of the four levels of measurement
7) A sample of fish is taken from a lake to
(nominal, ordinal, interval, ratio) is most appropriate.
measure the effect of pollution from a nearby
1) Amount of fat (in grams) in cookies.
factory on the fish.
A) Ratio
B) Nominal
A) Observational
B) Experimental
C) Interval
D) Ordinal
8) A stock analyst selects a stock from a group of
Perform the requested conversions. Round decimals to the
twenty for investment by choosing the stock
nearest thousandth and percents to the nearest tenth of a
with the greatest earnings per share reported
percent, if necessary.
for the last quarter.
9
A) Experimental
B) Observational
2) Convert
to an equivalent decimal and
125
percent.
Identify the number as either continuous or discrete.
A) 0.072, 7.2%
B) 0.072, 0.72%
9) The number of stories in a Manhattan building
C) 0.192, 192%
D) 0.192, 19.2%
is 22.
A) Discrete
B) Continuous
3) Convert 0.4 to an equivalent fraction and
percentage.
Identify which of these types of sampling is used:
3
3
random, stratified, systematic, cluster, convenience.
A)
, 40%
B)
, 4%
10
10
10) An education researcher randomly selects 48
middle schools and interviews all the teachers
2
2
C)
, 40%
D)
, 4%
at each school.
5
5
A) Stratified
B) Cluster
Solve the problem.
C) Random
4) On a test, Shoshana got 65% or 39 of the items
D) Systematic
correct. How many items were on the test?
E) Convenience
A) 167
B) 60
C) 13
D) 65
Identify the number as either continuous or discrete.
11) The number of freshmen entering college in a
Perform the requested conversions. Round decimals to the
certain year is 621.
nearest thousandth and percents to the nearest tenth of a
A) Discrete
B) Continuous
percent, if necessary.
5) Convert 1.1 to an equivalent fraction and
Determine which of the four levels of measurement
percent.
(nominal, ordinal, interval, ratio) is most appropriate.
1
A) 1, 110%
B) 1
, 11%
12) The sample of spheres categorized from softest
10
to hardest.
1
A) Ratio
B) Interval
C) 1
, 110%
D) 1, 11%
10
C) Ordinal
D) Nominal
Is the study experimental or observational?
Identify the number as either continuous or discrete.
6) A political pollster reports that his candidate
13) The number of limbs on a 2-year-old oak tree
has a 10% lead in the polls with 10%
is 21.
undecided.
A) Continuous
B) Discrete
A) Experimental
B) Observational
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