First set of data:
Mean - 6.5
Absolute deviation - 2.4
Second set of data:
Mean - 4.475
Absolute deviation - 2.275
Answer: C
Step-by-step explanation:
27 x .20 = 5.40
Closest answer, should be 5.40 though.
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Cosine and secant functions are reciprocal, which means

So, if

then

I hope this helps. =)
Tags: <em>cosine secant cos sec relation reciprocal trig trigonometry</em>