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Greeley [361]
3 years ago
10

John is about to roll a six-sided, fair number cube 60 times. He wants to predict how many times the cube will land on an even n

umber. He makes a prediction of 20 times. Is it a good prediction? What would your prediction be based on theoretical probability
Mathematics
2 answers:
GalinKa [24]3 years ago
4 0
Even numbersso each dice has numbers1,2,3,4,5,6the eve numbers are2,4,6odd are others1,3,5so 1/2 are odd
therefor 1/2 of 60 is how many times it would get even1/2 of 60=1/2 times 60=30
No not good predicitionmy prediction would be 30 times
puteri [66]3 years ago
3 0

Answer:

A number cube has 3 even numbers. Each even number has a theoretical probability of 1/6. In 60 rolls, an even number could come up ten times. Since there are 3 even numbers, the total predicted value is 30. So 20 is a low prediction.

-edg-

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You can set up two equations from the information given. I will set them up for you:

32 = 4x + 2y
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Let's solve the first equation to come up with a value for y.

32 = 4x + 2y
32 - 4x = 2y
16 - 2x = y

Now we plug y into the other equation.

36 = 5x + 2(16-2x)
36 = 5x + 32 - 4x
4 = x

Now we have our real x value and we can plug it into the first equation.

32 = 4(4) + 2y
32 = 16 + 2y
16 = 2y
8 = y

Since x = 4 and y = 8, you get the final coordinates of (4,8).

Your answer is the second statement provided above.
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Answer:

z = 0 ; 1

Step-by-step explanation:

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xeze [42]

Answer:

acute i think??

Step-by-step explanation:

8 0
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Answer:

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