31)As group size increases A)frequency polygons appear more jagged. B)histograms will look like normal curves. C)frequency polygons appear more smooth. D)frequency polygons will look like normal curves. 32)Distributions with bell-shaped curves are also referred to as A)rectilinear distributions. B)skewed distributions. C)asymmetric distributions. D)normal or near normal distributions. 33)In a distribution with a bell-shaped curve, A)most scores fall at the ends of the distribution. B)most scores fall at the top of the distribution. C)most scores fall in the middle of the distribution. D)all scores fall in the middle of the distribution. 34)As the group size increases, the frequency polygon A)tends to look negatively skewed. B)tends to look positively skewed. C)tends to look more like a smooth curve. D)tends to look more jagged in appearance. 35)In a skewed distribution, the direction of the skewness is indicated by A)the height of the curve. B)the section where the most scores lie. C)the tail of the curve. D)the point where the most scores lie. 36)A distribution in which most of the scores cluster near the bottom is a A)symmetric distribution. B)rectilinear distribution. C)negatively skewed distribution. D)positively skewed distribution. 37)A distribution in which most of the scores cluster at the top or high end of the scale is a A)symmetric distribution. B)rectilinear distribution. C)positively skewed distribution. D)negatively skewed distribution. 38)A difficult test in which most of the class did badly would form a A)symmetric distribution. B)negatively skewed distribution. C)positively skewed distribution. D)rectilinear distribution. 39)In a classroom for gifted students, we would expect the distribution of IQ scores to be A)rectilinear. B)identical. C)skewed. D)symmetric. 40)In a large classroom, a distribution of the weights of the students would be expected to be A)positively skewed. B)negatively skewed. C)symmetric. D)rectilinear. 41)If a frequency polygon showed a distinctive bunching of scores near the bottom of the scale with few scores in the middle and upper parts of a scale, we would say that the data were A)normally distributed. B)positively skewed. C)negatively skewed. D)symmetric. 42)A normal curve is A)positively skewed. B)negatively skewed. C)symmetric. D)bimodal. 43)The horizontal spread of a distribution is known as its A) central tendency. B)variability. C)frequency distribution. D)symmetry. 44)The horizontal spread of a distribution is also referred to as the ________ of the distribution. A)variability B)frequency C)validity D)symmetry 45)A distribution’s average location on the x-axis is known as its A)variability. B)symmetry. C)central tendency. D)frequency distribution. Â