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Ray Of Light
2 months ago
10

Question 7 (Essay Worth 10 points) (04.02 MC) Students at a virtual school are allowed to sign up for one math class each year.

The numbers of students signing up for various math classes for the next school year are given in the following table: Grade Geometry Algebra II Pre-Calculus AP Statistics Total 10th 150 75 25 5 255 11th 50 100 75 20 245 12th 10 50 100 65 225 Total 210 225 200 9 0 7 25 Part A: What is the probability that a student will take AP Statistics? (2 points) Part B: What is the probability that a 12th-grader will take either Pre-Calculus or AP Statistics? (2 points) Part C: What is the probability that a student will take Algebra Il given that he or she is in the 11th grade? (2 points) Part D: Consider the events "A student takes Algebra II" and "A student is a 10th-grader." Are these events independent? Justify your answer. (4 points
Mathematics
1 answer:
tester [12.3K]2 months ago
5 0

Response: Part A: 90/725

Part B: 165/225

Part C: 100/245

Part D: these events are not independent.

Detailed explanation:

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Credit To: "lublana" For This Answer

Answer:

For apartment "a", the one-time fee is $100.

The monthly rent for apartment "a" is $400.

Let’s denote the number of months as x.

Thus, the total cost for renting apartment "a" can be expressed as: 100 + 400x.

For apartment "b", the one-time fee is $500.

The monthly rent for apartment "b" is $350.

Therefore, the total cost for renting apartment "b" becomes: 500 + 350x.

We need to set up an inequality indicating how many months it would take for the total expense to be lower for apartment b.

This translates to: 100 + 400x is less than 500 + 350x.

Consequently, the required inequality is: 100 + 400x < 500 + 350x.

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Subtracting gives us: 400x - 350x < 500 - 100.

Which simplifies to: 50x < 400.

Dividing both sides by 50 results in: x < 8.

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A game has 15 balls for each of the letters B, I, N, G, and O. The table shows the results of drawing balls 1,250 times.
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