SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 1)
Provide an appropriate response.
1) A medical researcher wishes to see whether there is a relationship between a person's age,
cholesterol level, and systolic blood pressure. Eight people are randomly selected. The data
Person
1
2
3
4
5
6
7
8
Age
38
41
45
48
51
53
57
61
Cholesterol
level
220
225
200
190
250
215
200
170
Blood
Pressure
116
120
123
131
142
145
148
150
a) Find a multiple regression equation for the data.

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.