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Betty Tromp

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4y ago

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How do you find upper and lower quartiles In math?

To find the upper and lower quartiles of a data set, first, arrange the data in ascending order. The lower quartile (Q1) is the median of the lower half of the data, while the upper quartile (Q3) is the median of the upper half. If the number of data points is odd, exclude the median when determining these halves. Finally, use the following formulas: Q1 is the value at the 25th percentile, and Q3 is at the 75th percentile of the ordered data set.


How do you find the rank of product of two matrices?

just make the matrices upper triangular by making the values below the digonal zero,and then find how many minors can be calcuted.......


A Calculate Bowleys coefficient of skewness from the following information equals 34.087156 equals 44.962963 equals 39.606382?

the sum of the upper quartile and lower quartile is 56 and their difference is 24. find upper quartile and lower quartile.


How do you find least upper bound and greatest lower bound (if it exists) of (0)?

The answer depends on the level of accuracy of the value 0.


How do you find the inter-quartile of 7 numbers?

The interquartile range is the difference between the Lower quartile and the upper quartile. Obviously you need to be able to find these values. Haylock (2006) explains how to do this for difficult size groups in mathematics explained for primary teachers. He explains the position of the lower quartile is a quarter of (n+1) and that of the upper quartile is three-quarters of (n+1). So for a group of 7 numbers, you find a quarter of 8, which is 2. Therefore the number in second place is the lower quartile. Three quarters of 8 is 6 and so the number in 6th position is the upper quartile. Now take the lower quartile from the upper quartile.