Chapter 12: Q14. (page 797)
Identify each sample as or . Explain your reasoning.NEWSPAPERS A survey is sent to all people who subscribe to The Dispatch to determine what newspaper people prefer to read.
Short Answer
The sample is biased.
Chapter 12: Q14. (page 797)
Identify each sample as or . Explain your reasoning.NEWSPAPERS A survey is sent to all people who subscribe to The Dispatch to determine what newspaper people prefer to read.
The sample is biased.
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Get started for freeTo predict whether or not an issue on a ballot will pass or fail, a committee randomly calls 250 houses with area codes that are inside the voting district and asks the opinions of registered voters. Based on these efforts, the committee determines that of the voting population supports the issue. The committee concludes that the issue will pass.
a. Identify the sample.
b. Describe the population.
c. What method of data collection did the committee use: survey, experiment, or observational survey? Explain.
d. Is the sample biased or unbiased. Explain.
e. If unbiased, classify the same as simple, stratified, or systematic. Explain.
A box contains 8 red chips, 6 blue chips, and 12 white chips. Three chips are randomly drawn from the box and are not replaced.
Determine P(red, red, red).
The results of a simulation of coin flipping are shown.
Outcome | Frequency |
heads | 25 |
tails | 75 |
What is the theoretical probability of heads?
A box contains 8 red chips, 6 blue chips, and 12 white chips. Three chips are randomly drawn from the box and are not replaced.
Determine P(red, white, blue).
Find the mean absolute deviation to the nearest tenth.
Luci is keeping track of the number of candy bars each member of the drill team sold.
20, 25, 30, 50, 40, 60, 20, 10, 42
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