a.
To find out 7th grade student prefer math.
a.
Answer to Problem 10.10EP
36.5% of seventh grade student chose math as favourite subject
Explanation of Solution
Given information:
Formula used
Calculation:
Seventh grader chose math as favourite subject=92
Total number of seventh graders =252 Using formula to calculate seventh grader chose math as favourite subject
On solving,
=36.5%
Hence, 36.5% of seventh grade student chose math as favourite subject
b.
To find out number of students in eight grade.
b.
Answer to Problem 10.10EP
182 students are in grade eight.
Explanation of Solution
Given information:
Calculation:
Number of students of grade 8th choose math as favourite subject=47
Number of students of grade 8th choose science as favourite subject=51
Number of students of grade 8th choose English as favourite subject=25
Number of students of grade 8th choose Band as favourite subject=59
Then, total number of students of grade eight=47+51+25+59
On solving,
=182
Hence, 182 students are in grade eight.
c.
To find out number of students more math prefer than science.
c.
Answer to Problem 10.10EP
9 students more prefer math than science.
Explanation of Solution
Given information:
Calculation:
Number of students choose math as favourite subject=139
Number of students choose science as favourite subject=130
More students prefer math than science=139-130
On solving,
=9
Hence, 9 students more prefer math than science.
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