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.
Remember some of the TV shows that had main characters who drove beautiful cars? I remember William Conrad drove a beautiful Lincoln Mark IV in Cannon, Marcus Welby drove a beautiful Chrysler 300, and Rock Hudson drove an elegant '73 Lincoln Town Car in McMillan and Wife. I think Beaver Cleaver's dad had an ostentatious '58 or '59 Chrysler Imperial. Chip's would show some nice cars frequently too.