Answer:
The approximate value of the standard error of the sampling distribution is 3.63.
Step-by-step explanation:
We are given that a sample of 90 people is taken from a population. The standard deviation of the sample is 34.4.
Firstly, Standard error basically tells us that how much sample mean is deviated from the actual or true mean of the population.
It is most useful in constructing a confidence interval about population parameters.
<u></u>
<u>Now, as we know that the formula for finding standard error is given by;</u>
Standard error =
where, s = standard deviation = 34.4
n = sample size of people = 90
So, Standard error of the sampling distribution =
= <u>3.63</u>.
37. complementary angles always add up to 90. just subtract 57 from 90 and you get 37.
I’m pretty sure it’s c. She can do either one first because zero pairs will be created to isolate the variable either ways
Answer: got u bro
The Pythagorean theorem is a formula to solve for hypotenuse the formula is a squared plus b squared equals c squared. The Pythagorean theorem was made by someone for math which is four triangles that A in the equation is for the side of the right triangle B is for the other side and C is the hypotenuse. the photographer in theorem states that the sum of the squared sides of a right triangle equals the length of the hypotenuse. It is a fundamental relationship between the three sides of a right triangle; you must use two sides in order to find the hypotenuse. many ways to make a formula for the Pythagorean theorem but the most popular one is a squared plus b squared equals c squared. there's a book and it's called the Pythagorean proposition it contains over 300 formulas for the Pythagorean theorem. a man who went by Pythagoras had found the Pythagorean theorem in the school of mathematics and Cortana he was a Greek Seaport in southern Italy he was going to get too many contributions to mathematics although some of them may have actually been the work of his students that he had taught. Pythagorean theorem is the most famous mathematical contribution in history. It was created in 1900 BC. the reason why it was created that the Egyptians wanted a perfect 90° angle to build the pyramids which were actually two right triangles whose hypotenuse form the edges of the pyramid. there is a rumor that the Chinese had also developed the Pythagoras Theorem using the areas of the sides long before Pythagoras himself.
Answer:
18 units^2
Step-by-step explanation:
Formula for Area of trapezoid: ( base 1 + base 2 / 2) * height
(3 + 9 / 2) * 3 = (12 / 2) * 3 = 6 * 3 = 18 units^2
I hope this helps