Answer:
X : ___ 0 ____ 1 _____ 2 ______ 3
P(X) : _ 6/15 __ 5/15__ 3/15 ____ 1/15
Step-by-step explanation:
From the data, to produce a probability distribution for the data :
X : number of times blood is drawn ;
P(x) : probability that blood is drawn at X times
Hence, the probability distribution table for the data Given goes thus :
X : ___ 0 ____ 1 _____ 2 ______ 3
P(X) : _ 6/15 __ 5/15__ 3/15 ____ 1/15
Probability that blood is drawn 0 times = 6/15
Probability that blood is drawn 1 time = 5/15
Probability that blood is drawn 2 times = 3/15
Probability that blood is drawn 3 times = 1/15
(6/15 + 5/15 + 3/15 + 1/15) = 1
Answer:
Step-by-step explanation:
Probability of drawing a heart from one deck:
Therefore, probability of drawing a heart from each of 3 decks:
The probability expression is 
<h3>How to determine the probability expression?</h3>
The given parameters are
- Sophomore = 6
- Freshmen = 14
The total number of people is
n = 20
2 of the 20 people are to be selected.
So, the number of selection is
This gives
The expression that represents both students being sophomore is
--- i.e. 2 students selected from 6
The probability is then represented as:
Hence, the probability expression is
Read more about probability at:
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