What does it mean if the deviation in negative

No, standard deviation cannot be negative!

Step-by-step explanation:

Whenever we square something, we get a non-negative number. Since both the denominator and numerator are positive, the entire expression must be positive too.l

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !