Expand (-x+2y-3z) 2 using suitable identity. In the figure, points P, Q, R and S lie on a circle. Find the values of x and y. PLEASE FAST HELP

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The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.

Ithink your answer is b