iscamtprob(xval = -2.05, df = 10, direction = "below")
iscamtprob(xval = 1.80, df = 20, direction = "above")
iscamtprob(xval = -2, xval2 = 2, df = 15, direction = "between")
iscamtprob(xval = -2.5, xval2 = 2.5, df = 25, direction = "outside")
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