Advanced Technology Solutions revenue grew 17% to $1.2 billion, now accounting for 24% of our total revenue. Gross margin expanded 60 basis points, and adjusted operating income margin improved 40 ...

Birnbaum, Z W, and Meyer, P L. 1953. On the effect of truncation in some or all co-ordinates of a multi-normal population. J Indian Soc Agric Statist 5, 17–28.