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Natalka [10]
3 years ago
9

Draw a quadrilateral that does not belong, then explain why. What should I draw and write?​

Mathematics
2 answers:
OverLord2011 [107]3 years ago
7 0
I’m not sure, you’ll have to provide a picture along with your question if you want someone to give an actual answer.
Anna007 [38]3 years ago
6 0

Answer

do u have a demonstration

picture

Step-by-step explanation:

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A group of farmers planted 5 fields of vegetables. Of the fields they planted, 1/2 were planted with cabbage. How many fields of
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Scores on the SAT are approximately normally distributed. One year, the average score on the Math SAT was 500 and the standard d
Nookie1986 [14]

Answer:

The score of a person who did better than 85% of all the test-takers was of 624.44.

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.

One year, the average score on the Math SAT was 500 and the standard deviation was 120.

This means that \mu = 500, \sigma = 120

What was the score of a person who did better than 85% of all the test-takers?

The 85th percentile, which is X when Z has a p-value of 0.85, so X when Z = 1.037.

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

1.037 = \frac{X - 500}{120}

X - 500 = 1.037*120

X = 624.44

The score of a person who did better than 85% of all the test-takers was of 624.44.

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