12) 5024x If the average IQ is 65 with a standard deviation of 12, find the range of usual and unusual 1999 to enter answer Weight Choose the Answer Range of usual IQ scores: All IQ's below 41 and above 89. Range of unusual IQ scores: (41, 89). Range of usual IQ scores: (41, 89). Range of unusual IQ scores: All IQ's above 89. Range of usual IQ scores: (41, 89). Range of unusual IQ scores: All IQ's below 41 and above 89. Range of usual IQ scores: (64,89). Range of unusual IQ scores: All IQ's below 61 and above 89.