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Ages and Quotients
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accomplishing base line Bertha Betty block central tendency Chance List Helping chronological age coefficient of correlation compute determined divided educational age example fall fd column fd fd Fred frequency curve Frequency Distribution Measures grade graph guessed average hand corner Helen Helping Step Frequency histogram indicated intelligence quotient intelligence test Jane John Justin largest measure List Helping Step lower limit Marie Peter Mary mean deviation measure of central median mental ability mental age mid-point middle 60 Miss Grant's class Miss Joyce's class months multiplied norm normal curve normal distribution number of frequencies Number Square Square Pay no attention percentile Probable error Problems for Practice.—Find profile chart Pupils Scores quadrant quotient range rank relationship Root Number Square Ruth Salaries scatter diagram silent reading skewed smallest measure Sp.A spelling Square Root Number Square Square Root standard deviation statistics Step Frequency Distribution step-interval containing upper