testing for a disease can be made more efficient by combining samples. If the samples from two people are combined and the mixture tests​ negative, then both samples are negative. On the other​ hand, one positive sample will always test​ positive, no matter how many negative samples it is mixed with. Assuming the probability of a single sample testing positive is 0.15​, find the probability of a positive result for two samples combined into one mixture. Is the probability low enough so that further testing of the individual samples is rarely​ necessary?w./search?q=%E2%80%8B"At+ least%E2%80%8B+one"+is+equivalent+t o%E2%80%8B+.&oq=%E2%80%8B"At+le ast%E2%80%8B+one"+is+equivalent+to% E2%80%8B+.&aqs=chrome..69i57j0i 22i30l3.409j0j4&sourceid=chrome &ie=UTF-8 The probability of a positive test result is nothing