the probabilities are 0.60,0.20,0.10,and 0.10 that a state income tax form will be filled out correctly,that it will contain only errors favoring the taxpayer , that it will contain only errors favoring the government , and that it will contain both kinds of errors , what is the probability that among ten such tax forms (randomly selected for audit ) seven will be filled out correctly , one will contain only errors favoring the taxpayer , one will contain only errors favoring the government , and one will contain both kinds of errors?