Winglets Save Billions of Dollars in Fuel Costs. Transportation. Originating Technology/NASA Contribution. Anyone who has made a paper airplane knows that folding the wingtips upward makes your plane look better and fly farther, though the reasons for the latter might be a mystery.
The noun SCORE has 11 senses: 1. a number or letter indicating quality (especially of a student's performance). 2. a written form of a musical composition; parts for different instruments appear on separate staves on large pages.
What is a 'Z-Score'. A Z-score is a numerical measurement of a value's relationship to the mean in a group of values. If a Z-score is 0, it represents the score is identical to the mean score. Z-scores may also be positive or negative, with a positive value indicating the score is above the mean and a negative score indicating it is below the mean.