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3 years ago

WILL MARK BRANLIEST

Mathematics

1 answer:

Ierofanga [76]3 years ago

5 0

The probability will be 0.10. You can get this answer by looking at the graph. It says more than 3, so we'll ignore 3 and below. That leaves us with 4 and 5. Both of those show only 0.5 probability of someone owning that many cars. We add both 0.5's to get 0.10. Hope this helps!

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Answer:

[0.7210,0.8189] = [72.10%, 81.89%]

Step-by-step explanation:

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Since both np ≥ 10 and n(1-p) ≥ 10

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In Excel or OpenOffice Calc we use the function

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The 90% confidence interval for the proportion is then

$\bf [0.77-1.645^*0.0298, 0.77+1.645^*0.0298]=[0.7210,0.8189]$

This means there is a 90% probability that the proportion of people who watch educational television is between 72.10% and 81.89%

If the television company wanted to publicize the proportion of viewers, do you think it should use the 90% confidence interval?

Yes, I do.

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Answer:

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Step by step explanation

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