Probability & Statistics Unit 3.notebook
March 26, 2015
Bell Ringer: Statistics and Parameters:
Bell Ringer: Statistics and Parameters:
Occasionally, when I fill my car with gas, I figure out how many
Occasionally, when I fill my car with gas, I figure out how many
miles per gallon my car got. I wrote down those results after 6 fill-
miles per gallon my car got. I wrote down those results after 6 fill-
ups in the past few months. Overall, it appears my car gets 28.8
ups in the past few months. Overall, it appears my car gets 28.8
miles per gallon.
miles per gallon.
1) Identify the sample and the statistic calculated from this
1) Identify the sample and the statistic calculated from this
sample.
sample.
2) What is the parameter I'm trying to estimate?
3) How might my results be biased?
2) What is the parameter I'm trying to estimate?
4) When the EPA checks a car like mine to predict its fuel
economy, what parameter is it trying to estimate?
Bell Ringer: Statistics and Parameters:
Occasionally, when I fill my car with gas, I figure out how many
miles per gallon my car got. I wrote down those results after 6 fill-
Link to video about biased elements in surveys!
https://www.youtube.com/watch?v=th_nXWnaseM
ups in the past few months. Overall, it appears my car gets 28.8
miles per gallon.
3) How might my results be biased?
4) When the EPA checks a car like mine to predict its fuel
economy, what parameter is it trying to estimate?
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