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Vlad1618 [11]
3 years ago
8

At the start of "Rip Van Winkle," why is Rip popular with the children of the village? A. He gives them rides in his wagon. B. H

e plays songs for them on his guitar. C. He teaches them to fly kites and shoot marbles. D. He teaches them how to read and write.
Mathematics
1 answer:
Lyrx [107]3 years ago
4 0
I believe from reading it would be C teaches them to fly kites and shoot marbles. 
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My sister needs help !!!!!!!
yuradex [85]
A coin has one of two outcomes: heads or tails.
Each has an equal probability of occurring, meaning that they each have a 50% chance to occur. (They need to add up to 100% because they include all the outcomes, divide that into two equal parts and...)

This is what we call theoretical probability. It's a guess as to how probability <em>should</em> work. Like in the experiment, it's not always going to be 50-50.

What <em>actually happens</em> is called experimental probability. This may vary slightly from theoretical probability because you can't predict probability with complete certainty, you can only say what is <em>most likely to happen</em>.

We want to find the probability of getting heads in our experiment so we can compare it to the theoretical outcome. To do this, we need to compare the number of heads to the total number of outcomes.

We have 63 heads, and a total of 150 coin flips.
That makes the probability of getting a heads 63/150.
The hard part is getting this ratio into a percent.

You can try simply dividing, but you should be able to notice something here.
SInce the top and the bottom of our fraction are both divisible by 3, we can <em>simiplify</em>.
63 ÷ 3 = 21
150 ÷ 3 = 50
So we could say that 63/150 = 21/50.

A percent is basically a fraction out of 100.
Just like you can divide the parts of a ratio by the same number and it will stay the same, you can also multiply. To get the fraction out of 100, let's multiply by 2.
(since 50 × 2 = 100)

21 × 2 = 42
50 × 2 = 100
21/50 = 42/100 = 42%

Comparing our experimental probability to the theoretical one...it is 8% lower.
7 0
3 years ago
Read 2 more answers
I need HELP!!!!!!! plz help me!!!
Bogdan [553]

Answer:

there is nothing on here

Step-by-step explanation:

5 0
3 years ago
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It was reported that 23% of U.S. adult cellphone owners called a friend for advice about a purchase while in a store. If a sampl
leva [86]

Answer:

P(X=7)

And using the probability mass function we got:

P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271  

Step-by-step explanation:

Let X the random variable of interest, on this case we now that:  

X \sim Binom(n=15, p=0.23)  

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

And we want to find the following probability:

P(X=7)

And using the probability mass function we got:

P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271  

5 0
3 years ago
It is a week before the maths festival. A maths exhibitor costs £75.40 and so far 12 have been bought.
Tasya [4]

Answer:

Hello,

£75.40*12= 904.8£


Step-by-step explanation:


5 0
3 years ago
11. Which of the following points is on the
Alona [7]

a

Step-by-step explanation:

because it's is very important

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