This data represents the number of oil changes completed each day last week at Jeff's Auto Center.

19, 16, 24, 12, 16, 21, 18
i believe its 3/30 but its not an answer the closet is 1/30. is that valid?

The y-value if a data point corresponding to x1

What did pavlov initially notice about the animals in his original research after conditioning took place?

When you look at the data about all of the children in your setting, you can learn a. about child development. b. how well each individual child is performing. c. what outside factors you need to change. d. how effective your instruction and environment are.