Choose the correct answer below.
a. a critical value is the area in the right-tail region of the standard normal curve.
b. the number z_α/2 is a critical value that corresponds to an area of (1-α)/2 to its left.
c. the number z_α/2 is a critical value that is a z score with the property that it separates an area of α/2 in the right tail of the standard normal distribution.
d. a critical value is the number on the borderline separating sample statistics that are likely to occur from those that are unlikely to occur.

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

replication and blocking

step-by-step explanation: