What is the gamma statistic for the relationship between Total Family Income (Income91) and general happiness, logically coded (HAPPLOG)? INCOME91 Rows: $1000, $1000-2999, $3000-3999, $4000-4999, $5000-5999, $6000-6999, $7000-7999, $8000-9999, $10000-12499, $12500-14999 HAPPLOG Columns: Not to Happy 29.9%, 20.0%, 24.5%, 24.5%, 19.4%; Happy 51.9%, 64.5%, 58.2%, 56.1%, 64.8%; Very happy 18.2% ,15.5%, 17.3%, 19.4%, 15.8%, and Kendall's tau-b .16, Gamma .21, Standard Error .01