Calculator Activity

2 VARIABLE STATISTICS & LINEAR REGRESSION

OBJECTIVE: To perform 2 variable statistics and run a linear regression

Analyze the data set using 2 variable statistics and perform a linear regression.

X

1

 

1

 

2

 

3

10

Y

2

 

2

 

4

 

7

10

STEP 1: Set the calculator to 2 variable statistics by pressing

.

STEP 2: Enter 1,2 two times by pressing

 

 

 

.

STEP 3: Enter 2,4 by pressing

 

 

 

.

 

 

STEP 4: Enter 3,7 by pressing

 

 

 

.

 

 

STEP 5: Enter 10,10 by pressing

 

.

 

STEP 6: To determine the mean of the sample press

.

 

STEP 7: To determine the sample mean standard deviation for x press

 

.

 

 

 

 

 

 

 

STEP 8: To determine the population standard deviation for x press

.

STEP 9: To determine the number of samples for x press

.

STEP 10: To determine the sum of the samples for x press

.

STEP 11: To determine the sum of squares of samples for x press

.

STEP 12: To determine the mean of the samples for y press

.

STEP 13: To determine the sample mean standard deviation for y press

STEP 14: To determine the population standard deviation for y press

.

STEP 15: To determine the sum of the samples for y press .

STEP 16: To determine the sum of squares of samples for y press .

STEP 17: To determine a press .

STEP 18: To determine b press .

NOTE: Other regressions can be done in a similar manner by just setting your EL-W516B to the proper STATS Mode.

40