correlation MB

Choose the letter of the scatter plot which could possibly have the given r value. r = 0.5

Tags

CCSS.HSS.ID.C.8

Choose the letter of the scatter plot which could possibly have the given r value. r = 0

Tags

CCSS.HSS.ID.B.5

Choose the letter of the scatter plot which could possibly have the given r value. r = -0.85

Tags

CCSS.HSS.ID.C.8

Choose the letter of the scatter plot which could possibly have the given r value. r = 0.92

Tags

CCSS.HSS.ID.C.8

Choose the letter of the scatter plot which could possibly have the given r value. r = 1

Tags

CCSS.HSS.ID.C.8

Choose the letter of the scatter plot which could possibly have the given r value. r = -0.48

Tags

CCSS.HSS.ID.C.8

What does it mean to say that the data has a strong negative correlation?

• a) There is no relationship at all between the variables.

• b) More than half of the variables have a negative value.

• c) There is a negative cause and effect relationship.

• d) A linear model with a negative slope is appropriate.

Tags

CCSS.8.SP.A.2

Which of the following correlation coefficients represents the strongest linear relationship?

• 0.79

• 0.36

• -0.12

• -0.87

Tags

CCSS.HSS.ID.B.5

The relationship between the number of widgets in a package and the length of the package, in inches, is given in the table at the right. The linear correlation coefficient for this relationship is:

• a) 1

• b) -1

• c) .5

• d) 0

Tags

CCSS.HSS.ID.C.8

Which calculator output shows the strongest linear relationship between x and y?

• a) LinReg

  y = ax + b

  a = 58.135

  b = 7.348

  r = 0.843

• b) LinReg

  y = a + bx

  a = 0.702

  b = 24.286

  r = 0.8145

• c) LinReg

  y = ax + b

  a = 0.952

  b = 3.45

  r = 0.633

• d) LinReg

  y = ax + b

  a = 22.567

  b = -4.332

  r = 0.894

Tags

CCSS.HSS.ID.C.8