there are 13 girls and 15 boy in a line .if one student is choose at random then find the probability that he is a boy
Answers
Answer:
Step-by-step explanation:
Hi ,
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The theoretical ( classical ) probability of an event E , written as P(E),
its define as
P(E) = ( Number of outcomes favorable to E) / ( Number of all possible
outcomes of the experiment )
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According to the problem ,
Number of girls in the line = 13
Number of boys in the line = 15
Total possible out comes = Number of girls + Number of boys
= 13 + 15
= 28 -------( 1 )
The number of outcomes favorable for one student is chosen at
random that probability that he is a boy = 15 ---------( 2 )
P ( boy ) = ( 2 ) / ( 1 )
= 15 /28
I hope this helps you.
Answer:15/28
Step-by-step explanation:
number of girl =13
Number of boys=15
Total student =13+15 =28
Probability that student choosen random is
a boy = 15 /28