Lia and Elise are discussing measures of spread. Elise says the best measure of spread with which to compare data sets is the IQR. Lia says the best measure of spread with which to compare data sets is
the standard deviation.
Lía is correct if the data is?

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?