Answer:
The z-scores of both the mean and the median are zero.
Step-by-step explanation:
In a normal distribution, the mean and median values will be the same, in this case, 100. Therefore, both the mean and median will have the same score.
The z-score is given by:
For X = 100:
The z-scores of both the mean and the median are zero.
Answer:
sorry friend I need some points and ya posted 3 of em
Step-by-step explanation:
Problem 1
With limits, you are looking to see what happens when x gets closer to some value. For example, as x gets closer to x = 2 (from the left and right side), then y is getting closer and closer to y = 1/2. Therefore the limiting value is 1/2
Another example: as x gets closer to x = 4 from the right hand side, the y value gets closer to y = 4. This y value is different if you approach x = 0 from the left side (y would approach y = 1/2)
Use examples like this and you'll get the results you see in "figure 1"
For any function values, you'll look for actual points on the graph. A point does not exist if there is an open circle. There is an open circle at x = 2 for instance, so that's why f(2) = UND. On the other hand, f(0) is defined and it is equal to 4 as the point (0,4) is on the function curve.
=======================================================
Problem 2
This is basically an extension of problem 1. The same idea applies. See "figure 2" (in the attached images) for the answers.
Answer:
742
Step-by-step explanation:
Divide 1060 by 10 to get 106. This is 10% of his score.
100-30 is 70, so Val scored 70% of Peeta’s points.
Multiply 106 by 7 find 70%
Val scored 742 points
640 times by 90 = 57600 people
Total number of people attending event=
57600+640= 58240
