Probability of sample proportions example | Sampling distributions | AP Statistics | Khan Academy

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Probability of sample proportions example.

AP Statistics on Khan Academy: Meet one of our writers for AP¨_ Statistics, Jeff. A former high school teacher for 10 years in Kalamazoo, Michigan, Jeff taught Algebra 1, Geometry, Algebra 2, Introductory Statistics, and AP¨_ Statistics. Today he's hard at work creating new exercises and articles for AP¨_ Statistics.

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Thank you so much Khan Academy! It helped me a lot

enchangzs

This man just saved my life cause I have a math final tomorrow

pinkypix

Suppose researchers are concerned about the rate of residents reporting no access to health insurance in a particular community.
Suppose national statistics indicate that 24% of residents are living without health insurance.

Assume the researchers sample a group of 10 households.
The probability of seeing one household having no insurance in a sample is
I think this answer is normalPDF(1, 2.4, 1.35) = 0.1726
(similar operations to the video, but it is probability distribution function and not cumulative distribution function)
Either way, thanks for the video. It helped.

ninjanerdstudent

weird timing my class just went over this stuff today...

NarutoUzumakiofficial

Why don't we use the x bar for mean and S for standard deviaiton? (since it's for a sample)

shekelboi

Is this the same as using the Z table?

eldridgecoutinho

Can you please tell the formula for p(p hat>0.10). What you did on the calculator was not very clear.

ritubhatt

how can we solve this problem with z table?

elifdurmus

3:50 Ladies and gentlemen our calculator has gotten an awesome upgrade 📟😎

nocturnalvisionmusic

Probability of sample proportions example | Sampling distributions | AP Statistics | Khan Academy

Probability of sample proportions example | Sampling distributions | AP Statistics | Khan Academy

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