Solution:
Given the mean and standard deviation;

The z-score formula is;

(a)

(b)

(c)
Answer:
Any point on the circle (x + 1)² + (y - 5)² = 2 with center (-1 , 5) and radius √2
Step-by-step explanation:
circle: (x + 1)² + (y - 5)² = 2
Answer:
x>9 and x<11
Step-by-step explanation: