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anyanavicka [17]
2 years ago
9

You have 4/3 chocolate bars. You want to give 1/2 of the chocolate bars you have to your friend. What fraction of the chocolate

bars would each of you get
Mathematics
2 answers:
V125BC [204]2 years ago
8 0
2/3 since u just divide the numerator by 2
Crank2 years ago
4 0
The answer would be 2/3
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An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket appears for the flight is 0
zmey [24]

Answer:

96.33% probability that everyone who appears for the flight will get a seat

Step-by-step explanation:

I am going to use the binomial approximation to the normal to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 105, p = 0.9

So

\mu = E(X) = np = 105*0.9 = 94.5

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{105*0.9*0.1} = 3.07

What is the probability that everyone who appears for the flight will get a seat

100 or less people appearing to the flight, which is the pvalue of Z when X = 100. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{100 - 94.5}{3.07}

Z = 1.79

Z = 1.79 has a pvalue of 0.9633

96.33% probability that everyone who appears for the flight will get a seat

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2 years ago
The following M & M colors are in the bowl:
TEA [102]

Answer:

The probability of selecting a blue is 5/20 and the probability of selecting a yellow is 4/20. The difference is 1/20.

Step-by-step explanation:

This has to be the answer. I really hope this helps.

4 0
3 years ago
Jennifer is very social and outgoing she doesn't like to sit for a long periods of time and she dislikes work that requires her
UNO [17]

Answer:

secretary

Step-by-step explanation:

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3 years ago
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6th grade math help me pleaseeee...
iren2701 [21]

Answer:

-3.8

Step-by-step explanation:

u = 3.8

u × -1 = 3.8 × -1

-u = -3.8

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The path of a high diver is given by y = −94x2 + 249x + 10 where y is the height in feet above the water and x is the horizontal
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i dont know maybe someone else can help

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