The grouped percentage frequency of a class interval plus the sum of the percentage
frequencies of all lower class intervals is the _____ frequency of a distribution.
a. cumulative grouped percentage
b. cumulative grouped relative
c. summated grouped percentage
d. summated grouped relative
A
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All of the following are federal government limits on employing 14- to 15-year-olds EXCEPT:
A) they cannot use power-driven machinery. B) they cannot work in construction. C) they cannot work more than 25 hours per week during the summer. D) they cannot work more than three hours per day during the school year.
The spinal cord contains each of the following EXCEPT ______
a. endocrine glands to regulate hormonal functions b. motor neurons that control internal organs and muscles c. sensory neurons that carry information from the internal organs to the brain d. neural circuits that produce reflex movements