Answer:
y = -3/4x - 2
Step-by-step explanation:
y = -3/4x + b
1 = (-3/4) × -4 + b
1 = 3 + b
-2 = b
b = -2
y = -3/4x -2
Answer:10
Step-by-step explanation:
6+4=10
Answer:
The standard deviation of the sample mean is
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
The sample size is 
Generally the standard deviation of the sample mean is mathematically represented as

substituting values


X/100 = 52/260
100•52=5200
5200/260 = 20
20%