Question

a group of middle school students was surveyed by the school cafeteria manager to find their favorite lunch entrée. the partial results are listed below
the relative frequency of students who prefer chicken nuggets is 0.24. find ( x ), the number of students who answered chicken nuggets in the survey

Explanation:

Step1: Calculate total number of students except chicken nuggets

The number of students who like hamburger, hot - dog, pizza and spaghetti is \(62 + 44+123 + 52=281\)

Step2: Set up equation for relative frequency

Let the total number of students be \(N=x + 281\). The relative frequency of students who prefer chicken nuggets is \(\frac{x}{x + 281}=0.24\)

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Answer:

D. 89