Question

Jason noted the time it took his co-workers to reach the office and made a grouped frequency table of the data. The mid values of the class intervals that he made were 40, 48, 56, 64, 72 and 80. Which of these could be one of the class intervals that he made?

(Note: The mid value of a class interval = (upper class limit + lower class limit) / 2)
1 38 - 40
2 42 - 50
3 52 - 60
4 40 - 80

pls solve it fast
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Answer 1

sorry bro it will take time to solve.. :(