Refer to the following ages (rounded to the nearest whole year) of employees at a large company that were grouped into a distribution with class limits:
20 up to 30
30 up to 40
40 up to 50
50 up to 60
60 up to 70.
-IQs were tested for a number of students. The first three IQs are 105, 115, and 125.
The class interval is_____ .

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The Answer of Refer to the following ages (rounded to the nearest whole year) of employees at a large company that were grouped into a distribution with class limits:
20 up to 30
30 up to 40
40 up to 50
50 up to 60
60 up to 70.
-IQs were tested for a number of students. The first three IQs are 105, 115, and 125.
The class interval is_____ .

Refer to the Following Ages (Rounded to the Nearest Whole