What does y interpret of this graph represent? Maximum temperature is 20f

It was 8f when recording began

There is a change of 4f every hour

There is a change of 2f every hour

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true