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For problems 14-18, use the grouped frequency distribution below that shows the IQ scores of 80 people who took an IQ test. IQ score Frequency 76-82 2 83-89 6 90-96 15 97-103 35 104-110 16 111-117 5 118-124 1 14. Construct a histogram of the IQ scores. 15. Construct a frequency polygon of the IQ scores. 16. What kind of curve best describes the data? For problems 17-20, use the grouped frequency distribution below that shows the height of 80 freshman college students. Height in Frequency inches 56-58 5 59-61 10 62-64 18 65-67 11 68-70 12 71-73 16 74-76 7 77-79 1 17. Construct a histogram of the IQ scores. 18. Construct a frequency polygon of the IQ scores. 19. What kind of curve best describes the data? 20. Why do you think that this data gives us the curve you stated in exercise 19