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Leno4ka [110]
3 years ago
12

If randomly guessing, the probability that a person can correctly guess your birthday (month and day) on the first try is 1365=0

.0027. The probability that a person can correctly guess the birthday of two people in a row is (1365)2=0.0000075. You and a friend are out one night and you meet a magician who bets that she can randomly guess both of your birthdays on the first try.
QUESTION: If the magician does guess both of your birthdays, would you believe it was by pure chance, or would you believe that the magician knew your birthdays by some other means (whether that be magic, being a creepy stalker, etc.)? Explain.

Situation 2: Mark claims that his mean time for running a mile is 5.7 minutes and has a standard deviation of 0.2 minutes. This claim seems a bit fast and you want to put him to the test, so you make him run a mile. He runs the mile in 5.8 minutes, which is slower than his claim. However, if he is telling the truth, there is about a 0.31 probability, of having a time at least as high as 5.8 minutes.
Mathematics
2 answers:
Anit [1.1K]3 years ago
5 0

Answer:

is it a random answer or are there options?

Step-by-step explanation:

Sladkaya [172]3 years ago
3 0

Answer:

It would be pure chance.

Step-by-step explanation:

Statistics don't lie.

<h2><u><em>PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>
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Find the vertex of the parabola. y= -4x^2+24x-35<br><br> Answer ASAP
exis [7]

Answer:

(3,1)

Step-by-step explanation:

y=-4x^2+24x-35

x-intercept of the vertex formula:

v=-b/2a

a=-4

b=24,

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v = - 24/2(-4)

v = -24/-8

v = 3

substitute x as v

y= -4(3)^2 + 24(3) - 35

y= -4(9) + 72 - 35

y = -36 +72 - 35

y = 36 - 35

y = 1

therefore the vertex is

(3,1)

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ehidna [41]

Answer:

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Step-by-step explanation:

brainlist please or else ill kill you understand

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3 years ago
Please Help, I have to show my work too. 20 pts.
pav-90 [236]

Answer:

1.8148

Step-by-step explanation:

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first one is C and second is D

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Dahasolnce [82]
First, let's write an expression to represent this:
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