Students in a college were classified according to years in school (X) and number of visits to a museum in the last year (Y=0 for no visit, Y=1 for...

Students in a college were classified according to years in school (X) and number of visits to a museum in the last year (Y=0 for no visit, Y=1 for one visit, Y=2 for more than one visit). The joint probabilities in the accompanying table were estimated for these random variables.Number of visits