Question

the scores of 50 nurses taking a state board exam were recorded. a frequency polygon of these scores is shown below. how many nurses had scores that were greater than 70? nurses enter a number. suggested tutorial: learn it: interpret information represented in a frequency polygon. resources read it watch it

Explanation:

Step1: Identify the relevant data points

From the frequency polygon, find the number of nurses for scores \(70 - 80\), \(80 - 90\), and \(90 - 100\).
The number of nurses with scores \(70 - 80\) is \(15\), with scores \(80 - 90\) is \(18\), and with scores \(90 - 100\) is \(4\).

Step2: Sum the relevant frequencies

Add the frequencies of the relevant intervals: \(15+18 + 4\).

$$15+18+4=37$$

Answer:

\(37\)