Lesson 17: More About Sampling Variability | Unit 8: Probability and Sampling
Presentation
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Mathematics
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7th Grade
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Hard
+3
Standards-aligned
Wayground Content
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29 Slides • 8 Questions
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Open Ended
A marketing company wants to know how far baseball fans are willing to travel to watch a game. They select 100 different samples, each of size 40, from different parts of the country. Here is a dot plot showing the mean of each sample. Based on the distribution of sample means, what do you think is a reasonable estimate for the mean of the population?
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Multiple Choice
Does the number of dots on the dot plot tell us how many people were at the concert or how many students are in the math class?
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Open Ended
The mean age for the population is 35 years. If Elena picks a new sample of size 10 from this population, should she expect her sample mean to be within 1 year of the population mean? Explain your reasoning.
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Multiple Choice
What could Elena do to select a random sample that is more likely to have a sample mean within 1 year of the population mean?
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Multiple Choice
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Multiple Choice
A farmer grows 5,000 pumpkins each year. This dot plot shows the mean weight of 100 samples of 8 pumpkins, similar to the sample above. What appears to be the mean weight of the 5,000 pumpkins?
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Multiple Choice
A farmer grows 5,000 pumpkins each year. This dot plot shows the mean weight of 100 samples of 8 pumpkins, similar to the sample above. What does the dot plot of the sample means suggest about how accurate an estimate based on a single sample of 8 pumpkins might be?
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Multiple Choice
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