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gizmo_the_mogwai [7]
2 years ago
10

Margie is practicing for an upcoming tennis tournament. Her first serve is good 20 out of 30 times on average. Margie wants to k

now the estimated probability that her first serve will be good at least four of the next six times she serves. How could she design a simulation for this scenario?

Mathematics
2 answers:
mojhsa [17]2 years ago
7 0

Answer:

0.6804

Step-by-step explanation:

Given that Margie is practicing for an upcoming tennis tournament. Her first serve is good 20 out of 30 times on average.

Since each trial is independent and there are two outcomes, X no of good serves is binomial with n=6 and p =2/3

Required probability

= Prob that atleast four of 6 times good serve

=P(X\geq 4)

=P(x=4,5 or 6)\\=1-F(3)\\=0.6804

Formula used:

P(X=r) =6Cr (\frac{2}{3}^r )(\frac{1}{3}^{6-r}  )

satela [25.4K]2 years ago
3 0

What even does the other guy mean that didnt help at all.

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A pole that is 2.8 m tall casts a shadow that is 1.67 m long. At the same time, a nearby building casts a shadow that is 50.75 m
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Answer:

Explanation:

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Step-by-step explanation:

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2 years ago
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tiny-mole [99]
My teacher taught me a simple equation for these types of problems:
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We know don't know how much gallons of 60% solution we need so it will be represented as x. We dont know the total amount either so it would have to be both solutions added together so 50 + x. Now lets solve:
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Please help me this is due midnight ​
rjkz [21]

Answer:

Wait does it mean the actual real life distance or the distance on paper?

Step-by-step explanation:

If its real like just google it lol.

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A cone has a volume 12 pie cubic inches it’s height 4 inches what is the radius?
insens350 [35]

Answer:

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Step-by-step explanation:

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We have V = 12π in³ and H = 4 in. Substitute:

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3 years ago
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