The standard deviation of a particular sample is equal to the standard deviation divided by the square root of the sample size. That is,

The mean of a particular sample is equal to the mean of the set the sample was taken from. That is,

Divide both sides by -5 to get x= -13
Answer:
Step-by-step explanation:
y= -(1/2)x - 5
Multiply principle by time by rate
1200(.02)(5)
120