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What is the key purpose of using simulation when comparing two populations?
a. calculating theoretical probability
b. observing how probability works with real items
c. checking that the correct test statistics were used
d. finding a precise answer to a question

B) Observing how probability works with real items

Step-by-step explanation:

Just took the quiz :)

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

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