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Artyom0805 [142]
3 years ago
9

A quick quiz consists of a multiple-choice question with 6 possible answers followed by a multiple-choice question with 5 possib

le answers. If both questions are answered with random guesses, find the probability that both responses are correct. Report the answer as a percent rounded to two decimal place accuracy. You need not enter the "%" symbol
Mathematics
1 answer:
alex41 [277]3 years ago
8 0

Answer:

3.33

Step-by-step explanation:

Independent events:

If two events, A and B, are independent, we have that:

P(A \cap B) = P(A)*P(B)

In this question, we have that:

The question are independent of each other.

Event A: Correct guess on the first question.

Event B: Correct guess on the second question.

A quick quiz consists of a multiple-choice question with 6 possible answers followed by a multiple-choice question with 5 possible answers.

This means that P(A) = \frac{1}{6}, P(B) = \frac{1}{5}

Probability that both responses are correct.

P(A \cap B) = \frac{1}{6}*\frac{1}{5} = \frac{1}{30} = 0.333

The answer is 3.33%. Since it asks without the "%" symbol, 3.33

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2 consecutive odd numbers...x and x + 2
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x(x + 2) = 143
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4 years ago
A printer cost $60 at the big box store, but I have a 25% off coupon. The tax rate is 6.75%.
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3 years ago
Paws at play made a total of $1234 grooming 22 dogs. Paws at Play charges $43 to groom each small dog and $75 for each large dog
lisabon 2012 [21]

Answer:

<u>Answer (a):</u>

s + l = 22 ... (i)

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<u>Answer (b)</u>

9 large dogs.

Step-by-step explanation:

Paws at Play made a total of $1234 grooming 22 dogs.

Paws at Play charges $43 to groom each small dog and;

$75 for each large dog.

Let the number of small dogs be 's'

And the number of large dogs be 'l'

<u>A system of equations will be:</u>

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43s + 75l = 1234 ... (ii)

Solving this set of simultaneous equations by elimination, we simply multiply (i) by 43 to get;

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43s + 75l = 1234 ... (ii)

Subtracting (i) from (ii) we get;

32l = 288 , l = \frac{288}{32} = 9

So there are 9 large dogs.




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3 years ago
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