1. The standard deviation of the distribution of house age is about 16 years. Interpret this value. a. The age for the houses in the sample was typically 16 years from the mean.
b. The age for all the houses in the sample is 16 years from the mean.
c. The gap between the youngest and oldest house is 16 years.
d. The age for all houses in the sample is within 16 years of the mean. The gap between the first quartile and the third quartile is 16 years.

The correct option is b.

Step-by-step explanation:

Standard deviation is one of the measure of dispersion or spread of a dataset from the average value of the dataset. The standard deviation measures the absolute variability of the distribution of values.

The higher the spread or variability in the data set, the greater is the standard deviation value and thus greater will be the magnitude of the deviance of the value from their average.

It is provided that the  standard deviation of the distribution of house age is about 16 years.

The standard deviation of 16 years imply that the age for all the houses in the sample is 16 years from the mean.

Thus, the correct option is b.

option: d is correct

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.