An IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores.A standard devation of 15 means 68% of the norm group has scored between 85 (100 â 15) and 115 (100 + 15).In other words, 68% of the norm group has a score within one standard deviation of the average (100).n IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores.
Report Abuse. David Man's (Dennis Weaver) car: 1971 Plymouth Valiant The Truck Driver (Cary Loftin): 1955 Peterbilt 281 Information: In the DVD documentary, Steven Spielberg observes that the fear of the unknown is perhaps the greatest fear of all and that Duel plays heavily to that fear.
Beretta 92F (9x19mm) used by Bruce Willis in Die Hard. This is the screen-used gun from the film; note the extended mag release and slide release, which were modifications made specifically for Bruce Willis.ans Gruber (Alan Rickman) carries a hard chrome Heckler & Koch P7M13 as his main weapon, notably using it to threaten Joseph Takagi (James Shigeta) and Harry Ellis (Hart Bochner), and then brandishing it at the climax of the film, holding McClane's wife Holly (Bonnie Bedelia) at gunpoint.