Basic Statistics MCQ
1. A histogram is a type of frequency __________.
Answer
Correct Answer:
Distribution
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2. Raw, unorganized facts that need to be processed are called ________.
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3. Probability of an outcome in a decision-making situation with uncertainty is __________.
Answer
Correct Answer:
The likelihood of the outcome.
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4. The empirical rule applies to distributions that are ________.
Answer
Correct Answer:
Symmetric and unimodal
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5. _______ is choosing how many to order or make each time an order is planned.
Answer
Correct Answer:
Lot sizing
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6. A(n) _______ distribution has a ""bell"" shape.
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7. In a curvilinear regression model, the ________ represents the curvilinear effect.
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8. Two samples are ________________ if the sample values are paired.
Answer
Correct Answer:
Dependant
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9. To locate the percentile for a given observation in a data set, the data must be ___________.
Answer
Correct Answer:
Sorted and listed from the minimum to the maximum values
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10. The sum of the differences between sample observations and the sample mean is equal to _______.
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11. The mean of a collection of data is located at the ______ of a distribution of data.
Answer
Correct Answer:
Balancing point
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12. The maximum height of a normal curve corresponds to the ________ of a normal distribution.
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13. The hypothesis statement h: μ < 60 is an example of a(an) ________ hypothesis.
Answer
Correct Answer:
Alternative hypothesis
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14. The heights of the bars of a histogram correspond to _______ values.
Answer
Correct Answer:
Frequency
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15. The five number summary can be calculated ___________.
Answer
Correct Answer:
For a quantitative variable, but not for a categorical variable
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16. The first and second steps in constructing a frequency distribution are __________.
Answer
Correct Answer:
Calculate the range of the data set ; Divide the range by the number of groups you want and then round up
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17. The complement of an event a, within the sample space s, is the event consisting of ____________.
Answer
Correct Answer:
All outcomes in S that are not in A
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18. The area under the normal curve to the right of μ equals _______.
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19. By selecting a larger alpha level, a researcher is ______.
Answer
Correct Answer:
All of the above
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20. Data displays are __________ patterns in data.
Answer
Correct Answer:
Visual images of
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21. If calculated required sample size is a non integer value, we should always _____ calculated value.
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22. Sample size and the confidence level width have a (n) __________ relationship.
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23. In a scatterplot, a(n) ______________ is a point lying far away from the other data points.
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24. The ___ can be used to show the rank order and shape of a data set simultaneously.
Answer
Correct Answer:
Stem-and-leaf display
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25. Both qualitative and quantitative data can be displayed using a _____ graph.
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26. A contingency table would be used to summarize data such as ________.
Answer
Correct Answer:
Company employees by gender and organizational title
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27. A ____________ variable can have values that are numbers on the real number line.
Answer
Correct Answer:
Quantitative
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28. A probability distribution for all possible values of a sample statistic is known as a _____.
Answer
Correct Answer:
A sampling distribution
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29. As the degrees of freedom increase, the t distribution approaches the _____ distribution.
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30. The t distribution approaches the _______________ distribution as the sample size ___________.
Answer
Correct Answer:
Z, increases
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Statistics MCQs | Topic-wise
