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). IOs of 7h Grade Students 60 70 80 s0 tổ0 tio tào 1à0 140 150 160 scores OB. 100-109 Oc. 95 O D. 90-99 (e) Which class has the lowest frequency? OA 155 O B. 150-159 Oc. 150-160 OD. 60-69 (f) What percent of students had an IQ of at least 130? % (Type an integer or a decimal. Do not round.)

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