The average score on an iq test is 100. in modern iq testing, one standard deviation is 15 points. someone with an iq of 115 would be described one standard deviation above the mean one standard deviation below the mean two standard deviations above the mean 15 points above the average

In an october 2003 gallup survey of 1006 american adults, 54% said that iraq "was worth going to war over." use a significance test to determine whether you agree that a majority of american adults believed this was true.

What makes the just-world hypothesis psychologically appealing to the average person? a. many people develop skewed perceptions based on their worst experiences with the poor, which makes it hard for them to see things objectively. b. it is supported by a wealth of empirical data. c. most people’s everyday experiences teach them that society tends to distribute rewards and punishments fairly. d. most people have a strong need to believe that the world is orderly, predictable, and fair.

Which best describes why it is necessary to evaluate a solution?