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30.01.2021 •
Mathematics
Observe the following frequency table and answer the following questions
a. The lower limit of the second class is ______________
b. The frequency of the third class is _____________
c. The class size is _____________
d. The class interval having frequency 15 is _____________
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Ответ:
A) 19.5–30.5
B) 4
C) 9.5–60.5
D) 40–50
Ответ:
b=6
a=36
36=1/2(6)(h)
36=3h
divide both sides by 3
12=h
height=12 inches
answer is D