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fenix001 [56]
3 years ago
11

Of the 1,000 students in a local college, 420 own brand X mobile phones and 580 own brand Y mobile phones. Of these students, 80

own both brands of mobile phones. Find the probability that a student chosen at random has a brand X mobile phone given that he has a brand Y mobile phone.
Mathematics
2 answers:
Eddi Din [679]3 years ago
7 0
If we were to put this in terms of a venn diagram, we would have 360 owning only brand X, 500 owning only brand Y, and 80 in between, owning both. Therefore, 80 out of the 580 owners of brand Y may have X as well, which we put into fraction form 80/580, and reduce to 4/29.
Mars2501 [29]3 years ago
6 0

Answer:

D. 4/29

Step-by-step explanation: Plato only

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According to the vertex and the directrix of the given parabola, the equation is:

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<h3>What is the equation of a parabola given it’s vertex?</h3>

The equation of a quadratic function, of vertex (h,k), is given by:

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More can be learned about the equation of a parabola at brainly.com/question/26144898

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