The following sets of data show the number of butterflies that emerged from the pupa stage for a variety of species of butterfly. The set of data that has the greatest spread is?

The correct answer is: {5, 11, 18, 22, 38}

We will calculate the spread of the data for all the sets. We will then compare the values of all the sets. The set with greater value will have greater spread
{16, 17, 18, 23, 42}  
Spread = 42 - 16 = 26
{5, 11, 18, 22, 38} 
Spread = 38 - 5 = 33
{7, 12, 12, 20, 23} 
Spread = 23 - 7 = 15
{15, 18, 20, 23, 30}
Spread = 30 - 15 = 15
herefore, the data set {5, 11, 18, 22, 38} has a greater spread i.e, 38-5 = 33.