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masogreene123
11.02.2020 •
Mathematics
A survey of dance club goers found that 35% of club goers prefer trance music, 25% prefer dubstep and 15% preferred both trance and dubstep. Given a club goer prefers dubstep, what is the probability they like trance music?
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Ответ:
0.6
Step-by-step explanation:
35% of club goers prefer trance music.
25% of club goers prefer dubstep.
15% of club goes prefer both dubstep and trance music.
It is given that a club goer prefers dubstep.
The probability that he prefers trance music as well = Percentage preferring both dubstep and trance music/Percentage preferring dubstep
=![\[\frac{15}{25}\]](/tpl/images/0506/6878/e92f5.png)
=![0.6](/tpl/images/0506/6878/96529.png)
Ответ:
The surface area of the gift box that Kira decorates is![253.5\ in^{2}](/tpl/images/0225/4158/89b42.png)
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
A cube has six square faces
The surface area of a cube is equal to the area of the six squares faces
where
b is the length side of a cube
In this problem we have
substitute