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SVETLANKA909090 [29]
3 years ago
7

How do you round 243.876 to the nearest tenth, hundredth, ten and thousands

Mathematics
1 answer:
kompoz [17]3 years ago
6 0
Nearest tenth 243.9
nearest hundredth 243.88
nearest thousand 243.876
nearest ten 244
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If f(x) = (3+x)/(x-3), what is f(a+2)​
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f(a + 2) = \frac{3+a+2}{a+2-3} = \frac{5+a}{a-1}

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Which of the following are exterior angles? Check all that apply.
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If B(-5,8) is rotated about the origin by 180°, what are the new x and y coordinates for B'?
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3 years ago
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.
jekas [21]

Using the normal distribution, it is found that 1851 people would have an IQ less than 115.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 100, \sigma = 15

The proportion of IQ scores less than 115 is the <u>p-value of Z when X = 115</u>, hence:

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

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Out of 2200 people:

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More can be learned about the normal distribution at brainly.com/question/27643290

#SPJ1

5 0
1 year ago
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