Arandom sample of n=9 scores is obtained from a population with μ=50 and σ=9. if the sample mean is m=53, what is the z-score corresponding to the sample mean?

The z-score corresponding to the sample mean is 1

Step-by-step explanation:

z-score = (sample mean - population mean) ÷ (sd/√n)

sample mean = 53, population mean = 50, sd = 9, n = 9

z-score = (53 - 50) ÷ (9/√9) = 3÷3 = 1

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2