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Ipatiy [6.2K]
3 years ago
12

The probability that a high school student in in the marching band is 0.47. The probability that a student plays a varsity sport

is 0.32. The probability that a student is in the marching band and plays a varsity sport is 0.24.
What is the probability that a student plays a varsity sport if we know she is in the marching band?

Question 9 options:

.51


.75


.32


.24
Mathematics
2 answers:
IrinaK [193]3 years ago
8 0

The probability that a high school student in in the marching band is 0.47

so, P(M)=0.47

The probability that a student plays a varsity sport is 0.32

so, P(V)=0.32

the probability that a student is in the marching band and plays a varsity sport is 0.24

so, we get

P(M∩V)=0.24

a student plays a varsity sport if we know she is in the marching band

so,

P(V|M)=(P(V∩M))/(P(M))

now, we can plug values

and we get

P(V|M)=\frac{0.24}{0.47}

P(V|M)=0.51063

So,

the probability that a student plays a varsity sport if we know she is in the marching band is 0.51063......Answer

Irina-Kira [14]3 years ago
8 0

Answer:

5\30

Step-by-step explanation:

apexs

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A rectangular building for a gym is three times as long as it is wide. Just inside the walls of the building, there is a 6ft rectangular track along the walls of the gym and has an area of 7000ft²

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