I think it’s D or a I think so
Answer:
Square root of the variance of the "number of daily parking tickets"
Step-by-step explanation:
The Standard Deviation is a measure of how spread out numbers are.
Its symbol is σ (the Greek letter sigma)
The formula is easy: it is the square root of the Variance.
She would place it before the 4.
I guess this is what you mean 3√a^10 and 3√b^7
