Oh god statistics was not my jam. Mean distribution and standard deviation oh god.
Answer:
An organ system is a group of organs that work together to perform one or more functions. Each organ has a specialized role in a plant or animal body, and is made up of distinct tissues.
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probability of getting black card an ace =2/52=1/26
Answer is 4/7
You divide the length of C'D' over the length of CD
C'D'/CD = 8/14 = 4/7
The scale factor is smaller than 1, so C'D' is shorter than CD