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.
The z score tells you where a particular score lies in the distribution. Keep in mind that a positive z score (like our example) means that the score is greater than the mean score, whereas a negative z score is less than the mean. All of this is explained in Section 5.2. You should understand everything there.