The formula of a slope:

We have the points (-4, -3) and (-3, s) and the slope m = 3. Substitute:
Answer: Sample statistics are used to make inferences about population parameters.
Step-by-step explanation:
A number which describes a population is called a parameter, such as a proportion or percentage.
A statistic is a number which may be calculated from the data observed in a random sample without demanding the use of any unknown parameters.
The mean and variance of a population are population parameters.
Thus, fourth statement is the right answer "Sample statistics are used to make inferences about population parameters."
Answer:
20.78460969 = s
Step-by-step explanation:
tan theta = opposite side / adjacent side
tan 60 = s /12
Multiply each side by 12
12 tan 60 = s /12 *12
20.78460969 = s