Let's say you want to compute the probability

where

converges in distribution to

, and

follows a normal distribution. The normal approximation (without the continuity correction) basically involves choosing

such that its mean and variance are the same as those for

.
Example: If

is binomially distributed with

and

, then

has mean

and variance

. So you can approximate a probability in terms of

with a probability in terms of

:

where

follows the standard normal distribution.
Answer:
More than 200 items must be produced to keep the average cost below $40 per item.
Step-by-step explanation:
For all of the questions or only one-?
The mass of an object will never change no matter what, however, the weight relies on gravity. So therefore, the answer would be D.