3 years ago

SO ONE PLEASE HELP PICTURE SHOWN ALGEBRA 2

Mathematics

2 answers:

AveGali [126]3 years ago

7 0

The correct answer is A

Semenov [28]3 years ago

7 0

1,2.5 i beleve but i may be wrong hope this helps

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1. Suppose you take a coin and flip it 4 times in a row. After each flip you record whether the coin landed heads or tails. What

bekas [8.4K]

Answer:

25%

Step-by-step explanation:

Great question, since a regular coin has two sides one heads and one tails. That gives us a 50% probability of it landing on either side of the coin. Since we would like to know the probability of getting 2 heads in a row, we would need to multiply the probability of the first toss landing on heads with the second toss landing on heads, like so...

$\frac{1}{2} *\frac{1}{2} =\frac{1}{4}$

So we can see that the probability of us getting two heads in a row is that of \frac{1}{4}[/tex] or 25%.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

4 0

2 years ago

Check my steps and for part b, the professor wants us to show are work and I don't know how to solve it by hand.

Ugo [173]

Part a is correct.

Part b can be done a couple ways.
1) Use binomial distribution. p = 0.2, n = 144
P(x>3) = 1 - P(x=0) -p(x=1) -p(x=2) -p(x=3)
where
$P(x=k) = (nCk)p^k (1-p)^{n-k}$

2) Assume a normal distribution with mean = 28.2, stdev = 4.8
$z = \frac{4 - 28.2}{4.8} = -5.04$
Look up z-value in normal table to find probability.

Hope that helps.

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2 years ago

Your monthly phone bill is $133.74 and you by 0.25 per mintute your phone cost 9.99 per month. Find the number of mintutes you u

Sever21 [200]

133.74-9.99=123.75
123.75/.25=495

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2 years ago

How many pints are in 1 gallon?

Vesnalui [34]

Answer: 8

Step-by-step explanation:

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2 years ago

A builder uses the expression

brilliants [131]

Answer: Yes thats right

Step-by-step explanation: I took the quiz

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2 years ago