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Natalka [10]
3 years ago
13

Whats the measure of an interior angle of a regular 12 sided

Mathematics
1 answer:
True [87]3 years ago
4 0
360 ÷ 12 = 30.

The measure of an interior angle of a dodecagon is 30°. (:
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A researcher decides to split scores on an exam into quartiles. She determines that a score of 64 is at the 25th percentile, a s
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Answer:

Answer : A

Step-by-step explanation:

The given data is 25 th percentile is 64, 50th percentile is 74 and 75 th percentile is 80.

percentage : 25    50   75

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Median:- The median is obtained by first arranging the data in ascending or descending order and applying the following rule.

If the number of observations is odd, then the median is  observation

(\frac{n+1}{2}) ^{th} term

If the number of observations is even, then the median is  observation and  observations.

(\frac{n}{2}+1) ^{th}

given n=3, middle term is '74'

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Interquartile range IQR = median of upper half-median of lower half

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