Identify the level of measurement of the data, and explain what is wrong with the given calculation. in a survey, the hair colors of respondents are identified as 1 for brown hair comma 2 for blond hair comma 3 for black hair comma and 4 for anything else. the average (mean) is calculated for 724 respondents and the result is 1.5 .

Among the most famous of all meteor showers are the perseids, which occur each year in early august. in some areas the frequency of visible perseids can be as high as 40 per hour. given that such sightings are poisson events, calculate the probability that an observer who has just seen a meteor will have to wait at least five minutes before seeing another.