A teacher gathered data about the number of hours her students spent studying for a test and their resulting test grades. She found that on average, for every 30 minutes studied, the grade increased by 8 points. Which statements about this relationship are true? Check all that apply.

The data set would have a linear association.

The data set would have a positive correlation.

Students that study more tend to earn better grades on the test.

Step-by-step explanation:

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Given the information:

"for every 30 minutes studied, the grade increased by 8 points"

=> The rate of change of marks for 30 mins is 8

and in 1 hour = 60 mins = 2*30 mins

=>  The rate of change of marks for 60 mins is: 2*8 =16

=> The data set would have a linear association.

Moreover, as analysed above, we can conclude that students that study more tend to earn better grades on the test so the data set would have a positive correlation.

We choose 3 options:

Hope it will find you well.

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d