You would divide 56 by 80. Which would give you 0.7. So 56 is 80% of 70
The standard deviation of the distribution = 1.5°F
Given that the distribution of daily high temperature is approximately normal.
Population mean, = 86°F
Also approximately 95% of all daily high temperatures are between 83°F and 89°F.
So here = 83°F and = 89°F
We have the z - statistic ,
where is the Standard deviation.
For 95% probability, the z-value for normal distribution is 1.96.
As we consider the positive z-value, take X = = 89°F
So,
⇒ ≈ 1.5°F
So the standard deviation of the distribution = 1.5°F
Learn more about standard deviation at brainly.com/question/475676
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X and y on the left and right both equal 1
Answer:
It's 8 the answer is 8
Step-by-step explanation:
Answer:
All right triangles follow the pythagorean theorem. One way to tell if a triangle is a right triangle is by plugging all three side lengths into the pythagorean theorem:
a^2 + b^2 = c^2
(a and b being legs, c being the hypotenuse).
If the equation works, the triangle is right. If the equation is false, the triangle is not right.