Question

The table below represents the closing prices of stock ABC for the last five days. What is the r-value of the linear regression that fits these data?
DAY VALUE
1 24.31
2 23.31
3 23.01
4 23.16
5 23.27

A. -0.69771
B. 0.56941
C. -0.68427
D. 0.89215

Answer 1

Answer:

C. -0.68427

Step-by-step explanation:

Enter the data into a graphing calculator.

First decide which is the independent and which is the dependent variable.  Since the value of the stock depends on the day, value will be dependent and day will be independent.

This means that the days will be entered into the first list and the values will be entered into the second list.

Entering these and running the linear regression, we find the r-value to be -0.68427 .

Answer 2

I think it may b either c or b I'm not sure