Suppose x has a normal distribution with mean μ = 47 and standard deviation σ = 3. Describe the distribution of x values for sample size n = 4. (Round σx to two decimal places.)

Step-by-step explanation:

The sample mean follows with mean and standard deviation

Thus, the mean is:

And standard deviation is:

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

step-by-step explanation:

deez nut