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(b) A store sells three brands of mobile phones Brands, A, S, and H. Twenty five percent of mobile phones are from Brand S. Suppose that 13% of mobile phones are defective. In addition, twentyr five percent and thirtyr percent of defective mobile phones are from Brands A and H, respectively. Twenty percent and twenty five percent of nondefective mobile phones are from Brands S and H, respectively. Find x. In addition, if one mobile phone of Brand A is randome chosen, what is the chance that the mobile phone is non defective