5 3/5 divide by 2 2/3
1 answer:
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Answer:
<u>630</u> MP3 players are likely to be defective.
Step-by-step explanation:
Given:
A shipment to a warehouse consists of 4500 MP3 players the manager chooses a random sample of 50 MP3 players and finds that 7 are defective.
Now, to find the MP3 players which are likely to be defective.
Let the defective MP3 players be
Total MP3 players = 4500.
In sample of 50 MP3 players 7 are defective.
Now, setting the proportion:
If, 50 is equivalent to 7.
Then, 4500 is equivalent to
Now, to solve using cross multiplication method:
<em>By cross multiplying we get:</em>
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<em>Dividing both sides by 50 we get:</em>
Therefore, 630 MP3 players are likely to be defective.
Using the combination formula, it is found that Julia can take 15 combinations.
<h3>What is the combination formula?</h3> is the number of different combinations of x objects from a set of n elements, given by:
For this problem, 4 students are taken from a set of 6, hence the number of combinations is given as follows:
More can be learned about the combination formula at brainly.com/question/25821700
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