Suppose an organization conducted a study as part of a larger survey to ascertain the number of American adults who had experienced phenomena such as seeing a ghost, "feeling as if you left your body," and seeing a UFO. A representative sample of adults (18 and over) in the continental United States were interviewed in their homes. The results when respondents were asked about seeing a ghost are shown in the table.

	Reportedly Has Seen a Ghost
Yes	No	Total
Aged 18 to 29	226	1,299	1,525
Aged 30 or over	475	3,902	4,377
Total	701	5,201	5,902

Find numbers for each of the following.

(a)the percentage of the younger group who reported seeing a ghost (rounded to one decimal place)

(b)the proportion of the older group who reported seeing a ghost

(c)the risk of reportedly seeing a ghost in the younger group

(d)the odds of reportedly seeing a ghost to not seeing one in the older group (as a ratio using two numbers)