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Sauron [17]
2 years ago
11

Frank has 5 balls of blue yarn, 4 balls of red yarn, 2 balls of orange yarn, and 2 balls of green yarn in his knitting bag. With

out looking, Frank selects 1 ball of yarn from his bag. Select all of the true statements about Frank's selection. A It is likely that Frank selected a blue ball of yarn. B It is likely that Frank selected a red ball of yarn. C It is impossible that Frank selected a red ball of yarn. D It is equally likely that Frank selected an orange ball of yarn as a green of yarn. E It is impossible that Frank selected a yellow ball of yarn.
Mathematics
2 answers:
DIA [1.3K]2 years ago
7 0
The answer is A, B, D i think
SVEN [57.7K]2 years ago
6 0

Answer:

A

Step-by-step explanation:

because there is more blue ball of yarn so the possibility is more

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No, because the fraction is actually equal to a whole number. So it would be increased.
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3 years ago
Read 2 more answers
Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probabi
QveST [7]

Answer:

52.74% probability that a randomly selected airfare between these two cities will be between $325 and $425

Step-by-step explanation:

Problems of normally distributed samples are 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.

In this question, we have that:

\mu = 387.20, \sigma = 68.50

What is the probability that a randomly selected airfare between these two cities will be between $325 and $425?

This is the pvalue of Z when X = 425 subtracted by the pvalue of Z when X = 325. So

X = 425

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

Z = \frac{425 - 387.20}{68.50}

Z = 0.55

Z = 0.55 has a pvalue of 0.7088

X = 325

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

Z = \frac{325 - 387.20}{68.50}

Z = -0.91

Z = -0.91 has a pvalue of 0.1814

0.7088 - 0.1814 = 0.5274

52.74% probability that a randomly selected airfare between these two cities will be between $325 and $425

7 0
2 years ago
PLEASE ITS DUE SOON HELP AGGGGGGGGGGG IM STRESSING
inna [77]

Answer:

B

Step-by-step explanation:

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3 years ago
And this one too please and thank u.
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Answer:

( - 4 \\  - 3

Step-by-step explanation:

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Solve for x.<br><br> 8x^2−3=2
sergeinik [125]

8x^2=2+3

8x^2=5

x^2=5/8

x= sqrt(5/8)

5 0
2 years ago
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