Concept explainers
The number of students.

Answer to Problem 4STP
(F) 118
Explanation of Solution
Given information : The survey of 50 students found that 14 of them spend more than 2 hours on homework. Predict the survey for 421 students.
Formula used : The survey result can be used as a proportion to predict results.
Calculation : Let the number of students is
Then the corresponding ratio would be.
118 of them spend more than 2 hours on homework
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