CHOOSE A TEST!!! 17. In a study in New York, single college men were studied to see if hair color made a difference in dating life. 100 blond-haired men went on an average of 7.5 dates per month, with a standard deviation of 3.6 dates. 100 black-haired men went on an average of 6.4 dates per month, with a standard deviation of 3.9 dates. Can we say that there is significant difference in the number of dates between these two groups? (a = .10)

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.