(b) Team batting averages for major league baseball in 2005 are represented below. Find the variance and standard deviation for each league. Calculate standard deviation and compare the results.
NL Frequency AL Frequency
0.252-0.256 4 0.256-0.261 2
0.257-0.261 6 0.262-0.267 5
0.262-0.266 1 0.268-0.273 4
0.267-0.271 4 0.274-0.279 2
0.272-0.276 1 0.280-0.285 1