To verify statements and select correct ones.
Answer to Problem 19PFA
B, C, D are correct
Explanation of Solution
Given information:
Graphs with frequencies and cumulative frequencies.
A.
Here, frequency of class 0-4 are 7 and least frequency is 4. Hence, it is incorrect.
B.
Cumulative frequency of class 5-9 is 11, hence, it is correct.
C.
Cumulative frequency at last class interval (sum of frequencies) is 60. Hence, 60 people answered survey. It is correct.
D.
The cumulative frequency of people at 15-19 is 39, more than half of the people who participated in survey. Hence, it is true.
From above,
B, C, D is correct.
Chapter 10 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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