The thousands place is represented by the first 8 in this number. When we round, we round up because 880 is closer to 1,000 than to 0. This means that the number of bottle caps is closer to 9,000 than it is to 8,000. We need to gain 120 bottle caps to reach 9,000. On the other hand we need to lose 880 to reach 8,000. 120 is a smaller number than 880.
Step-by-step explanation: i just solved it and it was correct. 300-250=50 50 divided by 20 is 2.5. you divide it by 20 because you have to isolate h in 20h by itself. and to do that you divide 20h by 20
<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
