Answer:
45
Step-by-step explanation:
mean= sum of observation /number of observation
= 15+27+51+87/4
=. 180/4
=. 45
45 is the answer. sorry I can't explain it right now
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Answers & Comments
Answer:
45
Step-by-step explanation:
mean= sum of observation /number of observation
= 15+27+51+87/4
=. 180/4
=. 45
Answer:
45 is the answer. sorry I can't explain it right now