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bezimeni [28]
2 years ago
12

Martha rolls a 6 sided number cube two times.

Mathematics
1 answer:
oee [108]2 years ago
6 0

Answer:

25% chance

Step-by-step explanation:

There are 3 prime numbers on a 6-sided die so that means there is a 1/2 chance you roll a prime number. In order to calculate the probability of 2 or more events you multiply their probability which would be

1/2 * 1/2 = 1/4

So the chance of rolling a prime number on both rolls is a 1/4 chance or a 25% chance

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2 years ago
The probability that a plane departs on time at a certain airport is .87 The probability that a plane arrives on time given it d
sleet_krkn [62]

Answer:

0.9355

Step-by-step explanation:

What we will use here is conditional probability formula.

let A be the event that the plane departs on time

and B be the event that it arrives on time

P(A) = 0.87

P(B|A) = 0.93

P(B) = ?

P(A n B) = ?

Mathematically;

P(B|A) = P(B nA)/P(A)

0.93 = 0.87/P(A)

P(A) = 0.87/0.93

P(A) = 0.935483870967742

which is 0.9355 to four decimal places

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3 years ago
Given that f(X)=2X-5, find the value of X that makes f(X)=15
amid [387]
X=15 because 2(15) is 30-5 is 15
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3 years ago
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Hatshy [7]

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Step-by-step explanation:

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What is the name of this shape?​
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