B
It’s the only answer that begins with a positive number
Find the domain and range of the real-valued function f(x) = x2 + 7. B) The domain is all real numbers x such that x ≥ 0 and the range is all real numbers f(x) such that f(x) ≥ 7. C) The domain is all real numbers x such that x ≥ 0 and the range is all real numbers.
C. 1/8,2/3,9/10,7/6 is right
Answer:
c. histogram.
Step-by-step explanation:
In this case, the most appropiate way to show the results is to group the results in classes (for example from score 0 to 20, 21 to 40, 41 to 60, until 100) and show the relative frequency for each of the classes.
An histogram allows us to present this information graphically in the ways described before.
A pie chart is appropiate to show proportions.
A bar graph is similar but for discrete or non-numerical categories.
A dot plot is adequate por discrete classes and small samples.
