Answer:
P(X = 12) = 0.0064.
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this problem we have that:

We want P(X = 12). So


P(X = 12) = 0.0064.
Picture needed. not enough info
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First step : 2(2))+5\2 -2(2))+3\2 =9\2 -7\2 =2\2 =1
43.75LB is the answer. I’m assuming you mean 28 divided by 0.64