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

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Probability of sample proportions example.
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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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[@enchangzs3721]

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

[@pinkypix4762]

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

[@NarutoUzumakiofficial]

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

[@jerryauvagha]

Thanks a million, Khan

[@ninjanerdstudent6937]

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.

[@eldridgecoutinho2674]

Is this the same as using the Z table?

[@teodorminev4363]

yes, the part where he enters the lower and upper bound can be calculated through Z-tables

[@shekelboi]

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

[@francismali5840]

Cheers🎉

[@ritubhatt7367]

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

[@blenzewdu647]

Yes please, how do we find that?

[@elifdurmus]

how can we solve this problem with z table?

[@nocturnalvisionmusic]

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