Alex surveyed his classmates to determine who has been surfing and who has been snowboarding. Let A be the event that a classmat e HAS snowboarded and let B be the event that a classmate HAS surfed.
If Alex picked a classmate at random, what is P(B/A) ?
A. 4/21
B. 3/4
C. 4/25
D. 25/28
2 answers:
Answer:
surburu
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
<u>I got this question correct. :)</u>
<h3>P(B|A) = P(A and B) / P(A)</h3>
P(Surfed|Snowboarded) = P(Surfed and Snowboarded) / P(Snowboarded)
Amount surfed and snowboarded: 36 Total amount snowboarded: 48 P(B|A) = =
Apologies for lack of explanation, but I think this will do it.
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Answer:
$33
Step-by-step explanation:
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Y=3x2+1 Hope this helped :)
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Step-by-step explanation: Height × width × length