I think it’s 500 volunteers
Answer:
KL = 5.25
LJ = 6
Step-by-step explanation:
i don’t know the first one
Solution :
Given :
National mean score of the reading test that is conducted the NAEP = 288
Standard deviation of the score = 38
Therefore, P(X > x) = 0.25
P (Z >
= 0.674)
![$\frac{x-288}{38} = 0.674$](https://tex.z-dn.net/?f=%24%5Cfrac%7Bx-288%7D%7B38%7D%20%3D%200.674%24)
![$x=288+(38 \times 0.674)$](https://tex.z-dn.net/?f=%24x%3D288%2B%2838%20%5Ctimes%200.674%29%24)
x = 326.67
Therefore, the highest score that is needed for the students to be in the top of 25 percent among the students those who take the exam.
Answer:
x=9
Step-by-step explanation:
Plug in 8 for f(x)
8=2x-10
Isolate the x term by moving the 10
18=2x
Isolate the variable
9=x