2 years ago

Give the coordinates of the focus and the equation of the directrix with the equation

Mathematics

1 answer:

Andrews [41]2 years ago

7 0

Well from what i see this equation isn't a point at all, however it does start at (0,0)

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A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe

Mila [183]

<h3>Answer: 0.1319</h3>

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Work Shown:

$P(x) = (_n C_x)*(p)^x*(1-p)^{n-x}\\\\P(14) = (_{15} C_{14})*(0.8)^{14}*(1-0.8)^{15-14}\\\\P(14) = 15*(0.8)^{14}*(0.2)^{1}\\\\P(14) \approx 0.13194139533312 \\\\P(14) \approx \boldsymbol{0.1319} \\\\$

Side note: you can use the nCr formula to compute $_{15} C_{14}$ ; however, it's much quicker to use the shortcut formula $_{n} C_{n-1} = n$ . You can also use Pascal's Triangle to find the value of $_{15} C_{14}$