The sample space has 36 possible pairs from 1,1 1,2 1,3 up to 6,5 and 6,6
(a). Three pairs add to 4 1,3 2,2 and 3,1 so P(4) = 3/36 = 1/12
(b). 6 pairs add to 7 so P(7) = 6/36 = 1/6
(c) 15 pairs add to less than 7 so P(<7) = 15/36 = 5/12
Answer: 12p^3r and 54p^3
Step-by-step explanation:
Answer:
1856.4 is the answer for the problem
Considering the given box-and-whisker plot, it is found that the bookstore sold between 2 to 12 books in 20 days.
<h3>What does a box-and-whisker plot shows?</h3>
A box and whisker plot shows three things:
- The 25th percentile, which is the median of the bottom 50%.
- The median, which splits the entire data-set into two halfs, the bottom 50% and the upper 50%.
- The 75th percentile, which is the median of the upper 50%.
From the plot given in this problem, the have that:
- The 25th percentile is of 2.
- The 75th percentile is of 12.
This means that the percentage of days in which between 2 to 12 books were sold is:
P = 75 - 25 = 50%.
Hence, out of 40 days, the amount of days is:
0.5 x 40 = 20 days.
More can be learned about box-and-whisker plots at brainly.com/question/27721471
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