Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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Section 2 - Statistics and Models
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1.
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Scientists use statistics to
a. | graph data. | b. | analyze data. | c. | communicate ideas to
each other. | d. | All of the above |
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2.
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To get an accurate result, a sample size must be
a. | small enough to give an accurate estimate for two or more
populations. | b. | large enough to give an accurate estimate for a whole population. | c. | equal to the
mean. | d. | greater than the mean. |
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3.
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When studying a system, a conceptual model can help scientists understand
a. | what components a system contains. | b. | how the system components affect each
other. | c. | Both (a) and (b) | d. | None of the
above |
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4.
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Which model is particularly useful in scientific cases with many
variables?
a. | physical | b. | graphical | c. | conceptual | d. | mathematical |
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5.
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Risk is
a. | the collection of numerical data. | b. | the probability that something wanted will
happen. | c. | the probability that something unwanted will happen. | d. | a group of similar
things of interest to a scientist. |
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6.
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The classification and collection of data that are in the form of numbers is
called
a. | statistics. | b. | probability. | c. | distribution. | d. | mean. |
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Matching
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Section 2 - Statistics and Models
Choose the letter of
the description that best matches the term or phrase.
a. | a flow chart | b. | includes maps and
charts | c. | three-dimensional representation you can touch | d. | equation
representing how a process works |
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7.
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physical model
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8.
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graphical model
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9.
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mathematical model
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10.
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conceptual model
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