The pass rate of a company's products is 92%, and 50 of them are spot-checked, and only 2 are found to be unqualified. therefore. ["The company's product qualification rate is greater than 92%.", 'If 200 products are spot-checked, there must be 16 failures.', "The pass rate of the company's products is 96%.", 'Do another experiment, there may be no substandard products.']