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Chapter 12: Q34. (page 796)
The results of a simulation of coin flipping are shown.
Outcome | Frequency |
heads | 25 |
tails | 75 |
What is the experimental probability of tails?
The experimental probability is 0.75.
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Evaluate each expression.
Find the mean absolute deviation to the nearest tenth.
A fast food company polled a random sample of its customers to find how many times a month they eat out: 10, 3, 12, 15, 7, 8, 4, 12, 9, 14, 12. Find the mean absolute deviation of the data set to the nearest tenth.
Identify each sample, and suggest a population from which it was selected. Then classify the sample as simple, stratified, or systematic. Explain your reasoning.
The service manager at a car dealership inspects every fifth car to make sure cars are detailed after being serviced.
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.
Evaluate each expression.
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