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vlabodo
2 months ago
11

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation. x + y = 24 3x + 5y = 100 What does the solution of this system indicate about the questions on the test? The test contains 4 three-point questions and 20 five-point questions. The test contains 10 three-point questions and 14 five-point questions. The test contains 14 three-point questions and 10 five-point questions. The test contains 20 three-point questions and 8 five-point questions.
Mathematics
2 answers:
lawyer [12.5K]2 months ago
8 0
The response indicates that the test comprises 10 questions worth 3 points each and 14 questions worth 5 points. If there are any queries, feel free to ask!!! Thank you!
Inessa [12.5K]2 months ago
3 0

The response indicates that the examination consists of 10 questions worth 3 points each and 14 questions worth 5 points. Should you have any questions, please don’t hesitate to ask!!! Thank you!

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Answer:

The assertion is a) true

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In a standard deck of 52 cards, there are 13 cards belonging to the heart suit.

Since the cards are returned back to the deck after each selection, every one of the 15 events operates independently and share an identical probability of occurrence. As such, this scenario adheres to a binomial distribution with the following characteristics:Number of trials (n) = 15

Success probability (drawing a heart) = 13/52 = 1/4

Failure probability (not drawing a heart) = 39/52 = 3/4

In conclusion, the statement is true.

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