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2 years ago

Does the following relationship represent a function?

Mathematics

2 answers:

geniusboy [140]2 years ago

3 0

The answer is b because in order for it to represent a function, each input just has one unique output and never repeat

maw [93]2 years ago

3 0

Its yes because each input has one output

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Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally

saveliy_v [14]

Answer:

0.8029 = 80.29% probability that the thickness is between 3.0 and 7.0 mm.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 4.6 millimeters (mm) and a standard deviation of 1.5 mm.

This means that $\mu = 4.6, \sigma = 1.5$

Find the probability that the thickness is between 3.0 and 7.0 mm.

This is the pvalue of Z when X = 7 subtracted by the pvalue of Z when X = 3. So

X = 7

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

$Z = \frac{7 - 4.6}{1.5}$

$Z = 1.6$

$Z = 1.6$ has a pvalue of 0.9452

X = 3

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

$Z = \frac{3 - 4.6}{1.5}$

$Z = -1.07$

$Z = -1.07$ has a pvalue of 0.1423

0.9452 - 0.1423 = 0.8029

0.8029 = 80.29% probability that the thickness is between 3.0 and 7.0 mm.

6 0

3 years ago

If Tina traveled 1,000 miles in 5 hours on her plane flight to her vacation destination, how fast was the plane traveling? A.200

belka [17]

OK so for this it will be simple
1,000 divided by 200 is 5
so if the plane took 5 hours to do 1,000 miles then the plane was traveling at option A. 200 miles per hour.

4 0

3 years ago

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four freinds went to see a movie. each ticket cost $x. The table shows the prices of several items at the theater. They bought f

Vaselesa [24]

Y= 4x+20

combine the cost of water and pretzels into 1

8 0

3 years ago

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. Connor's mom bought 2 bags of candy to be divided among the 14 kids at a party. One bag of candy contains 42 pieces of candy.

dalvyx [7]

Answer: