I have 3 genes (eg. Gene A, B, C) that I am looking at expression levels for in the same dataset (same 100 genomics files, so samples are labeled 1-100). I have classified each sample as high or low based on expression level (eg, sample 1 is high expression for gene A, low for gene B, and low for gene C), and I want to statistically compare if the gene expression categorization is statistically different for each gene or not. (eg., is there a statistically significant overlap between which samples are high expression and which samples are low expression between Genes A, B, and C, or not?)

Thanks!