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mr Goodwill [35]
3 years ago
10

Can some one help me with this question its hard :( down below ill give brainliest

Mathematics
1 answer:
Andreyy893 years ago
8 0
I think it’s the second one b

I hope this helps :)
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Answer:

C. 4

Step-by-step explanation:

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3 years ago
2. What is the sample proportion of heads in your sample of 40? Report this value to your teacher.
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Answer:

\frac{18}{40}=0.45

Though it may vary, it's going closer to 0.5 as long as we enlarge our sample.

Step-by-step explanation:

1) Since a coin has heads and tails, then a sample proportion of 40 we can simulate it using some applets.

2) Here are the most common outcomes, as long as we continue on flipping coins.

\frac{18}{40}=0.45

If we continue enlarging our sample (80, 120,160...) the probability goes closer to 0.5

This shows: the theoretical probability goes closer and closer to the experimental probability of heads and tails

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3 years ago
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d

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A subtraction problem can be turned in to an addition problem because of negative numbers. Take 5-2=3 for example. If you change 5-2 into an addition problem then you would but he addition sign and a negative sign on 2. This will then leave you with the problem looking like 5+ -2. If you add 5 and -2 you will still get three.
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