Next, the company's advertisement has a coupon for the readers to send back for more information. The coupon shows from which newspaper it was obtained. Hence, an analysis of the respondents and if...

Extracted text: Next, the company's advertisement has a coupon for the readers to send back for more information. The coupon shows from which newspaper it was obtained. Hence, an analysis of the respondents and if they had subsequently purchased the product was carried out. This shows that the advertisement in the Harian Metro represented 30% of the respondents and that of these 40% purchased the product. For the New Straits Times, the percentages were 50% and 30%, respectively and for the Star, the percentages were 20% and 25%, respectively. By using a tree diagram, identify the probability of a person purchasing the product with the coupon taken from the Star.