(Solved): The following cumulative frequency and the cumulative relative frequency polygon for the distribut ...

The following cumulative frequency and the cumulative relative frequency polygon for the distribution of hourly wages of a sample certified welders in the Atlanta, Georgia, area is shown in the graph. Required: a. How many welders were studied? b. What is the class interval? c. About how many welders earn less than \( \$ 26.00 \) per hour? d. About \( 50 \% \) of the welders make less than what amount? e. Thirty of the welders studied made less than what amount? Amount What percent of the welders make less than \( \$ 25.00 \) per hour?