An advertising firm is checking on the effectiveness of its jingle for Wobble® g

Question

An advertising firm is checking on the effectiveness of its jingle for Wobble® gelatin. It asked a sample of 100 people whether they remembered the jingle and whether that had bought Wobble during the past two months. The responses to the survey are shown below. Remembered jingle Did not remember jingle Totals Had bought Wobble 31 26 57 Had not bought Wobble 18 25 43 Totals 49 51 100 1.Find P(did not remember jingle). 2.Find P(had not bought Wobble | remembered jingle). 3.What is P(did not remember jingle | had not bought Wobble

Explanation / Answer

1)P( did not remember jingle) =51/100=0.51

2) P(had not bought Wobble | remembered jingle) =18/49=0.3673

3)P(did not remember jingle | had not bought Wobble)=25/43=0.5814

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