A standard normal distribution has a mean of zero; half the bell curve is to the left of zero and half to the right.
A standard normal distribution has a standard deviation of 1 and follows the 68-95-99.7 rule; e.g. 99.7% of the probability is between -3 and +3.
Choice a
The first photo as it has the line of best fit.(my opinion)
Answer:
the answer is D.
Step-by-step explanation:
So it’s gonna be
-(3)*9*2= -54
