Answer:
the answer is -9 it think
Answer 16
Step-by-step explanation:
A) 9a+6b
b)5c-3d
combine like terms*
Answer:
std dev = 0.625
Step-by-step explanation:
Given that weights of bags of potato chips coming from a factory follow a normal distribution with mean 12.8 ounces and standard deviation .6 ounces.
We must change std deviation such that
P(X<12) =0.01
Mean would remain the same as 12.8 oz
From normal distribution score we can find
10th percentile is -1.28\
i.e. we must have

Std deviation should be 0.625