Please help don’t scam marking brainlist
1 answer:
Answer:
c) 1.2 mm, 1.6 mm, 2 mm
Step-by-step explanation:
In order to find which sides equal a right triangle, you need to use the Pythagorean Theorem:
Set up the equation with the first numbers. The two shorter sides (legs) are A and B, and the longest side (hypotenuse) is C.
=
Since the two sides are not equal, the first option is not a right triangle.
When you follow these steps with the remaining three options, you'll find that the third option (C) makes a right triangle.
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Answer:
And that represent the proportion of failures.
The confidence interval for the mean is given by the following formula:
If we replace the values obtained we got:
The 99% confidence interval would be given by (0.0475;0.2185)
Step-by-step explanation:
Previous concept
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Solution to the problem
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by and
. And the critical value would be given by:
The proportion estimated would be:
And that represent the proportion of failures.
The confidence interval for the mean is given by the following formula:
If we replace the values obtained we got:
The 99% confidence interval would be given by (0.0475;0.2185)