The following frequency histogram represents the IQ scores of a random sample of seventh-grade students. IQs are measured to the nearest whole number. The frequency of each class is labeled above each rectangle. Use the histogram to answers parts (a) through (g) IQs of 7th Grade Students 60 70 B0 90 100 1i0 120 130 140 150 160 1a scores O B. 100-109 OC. 95 O D. 90-99 (e) Which class has the lowest frequency? O A. 155 OB. 150-159 Oc. 150-160 OD. 60-69

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