. The dot plot shows the number of hours students spent last week on social networking sites. Which is NOT an inference that can
be made about the two populations?
A. Females typically spend more time than males on the sites.
B. Females typically spend less time than males on the sites.
C. The range for males is greater than the range for females.
D. The interquartile range for the males is 4 hours.
A. Females typically spend more time than males on the sites.
B. Females typically spend less time than males on the sites.
C. The range for males is greater than the range for females.
D. The interquartile range for the males is 4 hours.
1 answer:
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A function is positive if it lies above the x axis.
This function is positive before x = -4, i.e. over the interval
It is negative elsewhere, i.e. over the interval
So, the only correct option is the second one.