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AVprozaik [17]
2 years ago
13

What is the probability if a penny lands on heads 30 times after being tossed 50 times?

Mathematics
1 answer:
Firlakuza [10]2 years ago
7 0

The probability will be equal to 60%.

<h3>What is probability?</h3>

Probability is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

The best thing to do here is to put it into a fraction. as 30 landed heads up, 20 (50-30) must be tails.

You can then put this into a fraction, which becomes 20/50.

To turn this into a decimal, you can then divide 1 by 50

1/50= 0.02

As you've got 22 lots of this, you then need to multiply 0.02 by 20.

0.2x20= 0.40

To find the percentage, you've then got to multiply the decimal by 100.

100x0.40= 40.

Therefore, 40% of the tosses would be tails

As you've found what one percentage is, you simply need to take this number away from 100 to find the other, rather than having to go through the process again.

100-40= 60

To know more about probability follow

brainly.com/question/24756209

#SPJ1

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Step-by-step explanation:

sorry if this is wrong.

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3 years ago
A gallon of gas has dropped to 2.85 if yesterday was 2.90 what is the percentage of decrease
vodomira [7]

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2 years ago
Someone please help for brainiest and thanks.. No fake answers or you get reported
bagirrra123 [75]

Hello from MrBillDoesMath!

Answer:

12/5


Discussion:

Note that 10 is a common denominator of both denominators:

9/5 = (9*2)/(5*2) = 18/10

- ( -6/10) = + (6/10)

So the original problem is equivalent to

18/10 + 6/10 =

(18 +6)/10 =

24/10 =

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12/5 =

2 and 2 fifths =

22/5            (though this looks like (22)/5!)


Thank you,

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4 years ago
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Happy learning!

--Applepi101

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Step-by-step explanation:

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