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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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If you know the measure of the vertex angle of an isosceles triangle, how do you find out the measure of the base angles?
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Step-by-step explanation:

An isosceles triangle has 2 sides that are the same length.  Let's say that our triangle has the 2 sides measuring the same and the base is a different length.  The vertex angle is the top angle.  By the definition of an isosceles triangle, since the 2 sides measure the same length, then the angles across from those sides have the same degree measure.  If we know the measure of the vertex angle, then we have

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but since the base angles are the same and we have 2 of them, then

180 = vertex angle - 2 base angles

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Elisa puts $1,000 into each of 2 bank accounts.
Dafna1 [17]

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Suppose cos(a)=.325
tatyana61 [14]

The value of tan a is 2.9098

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The given value is \cos (a)=0.325

Now, we shall find the value of sin (a), using the identity,

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Substituting the value of cos (a), we get,

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Subtracting both sides by 0.1056, we have,

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sin a= 0.9457

Now, we shall substitute the value of sin (a) and cos (a) to determine the value of tan (a) in the identity tan (a) =\frac{sin(a)}{cos(a)}

tan (a) =\frac{0.9457}{0.325}\\tan (a) = 2.9098

Thus, the value of tan (a) is 2.9098

7 0
3 years ago
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