The dot plot shows the number of books read by students in grades 7 and 8 as part of a summer reading program. Match each phrase to its correct value. answers available:
6 : 5 : 4 : 3 : 1.76 : 1.52 : 1.5 : 1.4 : 1/6 : 2/3

1. the average number of books read by students in grade 7 =

2. the average number of books read by students in grade 8 =

3. the mean absolute deviation for books read by students in grade 7=

4. the mean absolute deviation for books read by students in grade 8 =

5. the difference of the average number of books as a multiple of the mean absolute deviation for grade 8 =
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first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

312312

step-by-step explanation: