​(a) What is the class​ width? nothing   ​(Type an integer or a​ decimal.)   emperature ​(°​F) Frequency   45-49 1   50-54 3   55-59 5   60-64 11   65-69 7   70-74 7   75-79 1   ​(b) What are the class​ midpoints? Complete the table below. ​(Type integers or​ decimals.)   Temperature ​(°​F) Frequency Midpoint 45-49 1 nothing 50-54 3 nothing 55-59 5 nothing 60-64 11 nothing 65-69 7 nothing 70-74 7 nothing 75-79 1 nothing

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