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Gnom [1K]
3 years ago
13

Brianna answered 80% of the questions correct on her math test. Which fraction represents the number of questions she answered c

orrectly?
Mathematics
2 answers:
LiRa [457]3 years ago
7 0

Answer: 4/5

Step-by-step explanation:

80% is 80/100

80/100 simplified is 4/5

Reptile [31]3 years ago
6 0

Answer:

8/10 ( you didnt say how much questions there were)

Step-by-step explanation:

As a fraction, 80/100 simplifies to be 8/10. ( 10 can go into 80, 8 times and 10 can go into 100, 10 times)

So, if Brianna had 10 questions on the test and answered 80% correctly, take the numerator of this simplified fraction and that's the answer

ANSWER: 8

Brianna got 8 questions correct

Hope this helps you. Plz mark Brainliest if u want to!  :)  

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3 years ago
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Using it's formula, it is found that the mean of the discrete random variable is given by:

B. 30.47.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.

Hence, considering the table, the mean of the discrete distribution is:

E(X) = 23 x 0.16 + 25 x 0.09 + 26 x 0.18 + 31 x 0.12 + 34 x 0.24 + 38 x 0.21 = 30.47.

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More can be learned about the mean of a discrete random variable at brainly.com/question/26660401

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2 years ago
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7 0
3 years ago
Is 0.06 greater than 0.0582
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