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rusak2 [61]
3 years ago
14

Find the probability of correctly answering the first 3 questions on a multiple choice test if random guesses are made and each

question has 5 possible answers.
Mathematics
1 answer:
iren2701 [21]3 years ago
3 0
Each question has 1 correct answers...and their are 5 possible answers

probability of getting 1st question correct is 1/5
probability of getting 2nd question correct is 1/5
probability of getting 3rd question correct is 1/5

and since all of these events are independent, to find the probability of getting all 3 right, we must multiply

1/5 * 1/5 * 1/5 = 1 / 125 <==
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3 years ago
Please don't delete my question! Here they are:
Alinara [238K]

Answer:

1. 14/15

2. 5 7/8

3. 81.25%

Step-by-step explanation:

1. (fraction) 7/9 divided by 5/6 (fraction)

7/9 ÷ 5/6 =

= 7/9 * 6/5

= (7 * 6)/(9 * 5)

= 42/45

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2.

1 3/8 + 4 1/2 =

= 1 + 3/8 + 4 + 1/2

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3.

percent = part divide by whole times 100

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= 81.25%

4 0
3 years ago
Read 2 more answers
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