Answer:
i think its A (edit: im gonna take that back because i was looking at the wrong side, logically it is 12)
Step-by-step explanation:
No because the box has a fixed weight as the several books weighing said pounds would most likely to be use as the x in this equation.
Answer:
B = -.5
Step-by-step explanation:
If B is negative is cancels out the prexisting negative making it positive.
Answer:
a) 0.37
b) 0.421
c) 0.25
Step-by-step explanation:
Since the probability of winning a game is binomial (P = 0.5) the expected value for number of winning when you play 60 games is

And the standard deviation:

a) the cumulative probability of winning at least 35 games is

b)
c)
Fifty , 50 20+30=50, not sure if its asking much else