What is the frequency for the scores in the interval 81-100?
1 answer:
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Answer:
65°
Step-by-step explanation:
recall that for a triangle, the exterior angle (130 deg in this case) is equal to the sum of its remote interior angles (also see attached)
this means that
130° = y° + y°
or
2y° = 130°
y = 130/2 = 65°
