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Chapter 12: Q15. (page 737)
Write each fraction as a percent. Round to the nearest tenth.
The fraction as a percent is .
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Choose the word or term that best completes the sentence.
Randomly drawing a marble from a jar and then drawing another marble are dependent events if the marbles (are, are not) replaced.
Which measure of central tendency best represents the data? Justify your answer. Then find the measure.
Sophia keeps track of the ages of students in her class. She wants to best represent the ages of her classmates: 13, 14, 13, 13, 14, 13, 13, 15, 14, 13, 14, 14, 10.
A local cable provider asked its subscribers how many television sets they had in their homes. The results of their survey are shown in the probability distribution.
Number of televisions | probability |
1 | 0.18 |
2 | 0.36 |
3 | 0.34 |
4 | 0.08 |
0.04 |
If a household is selected at random, what is the probability that it has fewer than 4 televisions?
The results of a simulation of coin flipping are shown.
Outcome | Frequency |
heads | 25 |
tails | 75 |
What is the experimental probability of heads?
Evaluate each expression.
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