Transcript Slide 1

ECON 338/ENVR 305
CLICKER QUESTIONS
Statistics – Question Set #1(from Chapter1)
A(n) _____ is any subset or subcollection of the population.
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Parameter
Sample
Statistic
Estimate
estimator
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Which of the following data sets represents a population?
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Heights of all students in a college
Scores of randomly selected group
of students
Weights of ten girls in a class of 30
students
Ages of voters who registered on a
particular day
Any five day’s temperature readings
of the last month
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Response
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A researcher wants to determine the average income of the people
of Omaha, Nebraska. He found that there are 385,600 employed
people in the city. A group of 1,200 people are selected randomly to
ascertain the income of each of those individuals. He finds that the
average income of those 1,200 numbers to be $42,827. Identify the
population in this context.
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Response
Counter
385,600 employed people in Omaha
1,200 people selected for the study
Average income of $42,827
385,600 – 1,200 constitute the population
385,600 + 1,200 constitute the population
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Consider the data: {12, 11, 15, 20, 12, 11, 11, 12, 15, 13, 13, 10,
15, 11}. What is the frequency of 11 in the given data set?
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Response
Counter
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14
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