21 is the right answer goodluck
I’m pretty sure the answer is %80!
The information about the coordinate plane shows that the slope of XV is 1.
<h3>How to illustrate the information?</h3>
From the information, the slopes of the diagonals are negative reciprocals. Therefore, the slope of UW is -1 and the slope of XV is 1.
The diagonals of kite UVWX are perpendicular.
It should be noted that negative reciprocals in a kite create a perpendicular bisector. So the two lines share a midpoint so they are perpendicular.
Learn more about coordinate plane on:
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30*5=150
32*34=1088
15*19=285
15*3=45
Answer:
B. Goodness-of-Fit Test
Step-by-step explanation:
Given that a professor expects that the grades on a recent exam are normally distributed with a mean of 80 and a standard deviation of 10.
She records the actual distribution of grades and wants to compare it to the normal distribution
For this expected values are to be got assuming normal and the observed and expected are used to calculate chi square.
Depending on the chi square statistic conclusion is made
Here the test to be done is
B) Goodness of fit test.
A is wrong because test of independence is done when there are more than one categorical variable in the rows.
C is wrong because here homogeneity is not tested
Only B is right.