Answer:
Step-by-step explanation:
<span>if you have 21 bins then the 'middle bin' is bin 11 (starting at 1)
So the 'mean' of this distribution is 11.
The SD is 3
so using the above calculator (or your own tables ) you get that the probability of a ball being in bin 7 or less is .091
A is you answer
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-$45 - 34 = -79 explain when you subtract a negative to a positive you come out with a negative
Pretty sure it’s D (I’m adding more to this because I have to add more words to submit this answer in Brainly)
The answer you are looking for is C. (12)
