A daily lottery draws three single-digit numbers, givingplayers a 1/1000 likelih
ID: 2918837 • Letter: A
Question
A daily lottery draws three single-digit numbers, givingplayers a 1/1000 likelihood of winning, is this an example ofprobability or statistics? Is 16.5 kilowatts of power data qualitative orquantitative? Researchers divide subjects into two groups. The first groupreceives a placebo, the second group receives a new drug. Is thisexperimental or observational? A daily lottery draws three single-digit numbers, givingplayers a 1/1000 likelihood of winning, is this an example ofprobability or statistics? Is 16.5 kilowatts of power data qualitative orquantitative? Researchers divide subjects into two groups. The first groupreceives a placebo, the second group receives a new drug. Is thisexperimental or observational?Explanation / Answer
1) Yes this is. Just like an example with dice. There are theprobabilities 1/6 for 1,2,3,4,,5 and 6 and here isa 1/1000 probability of winning and 999/1000 of not winning: P(win)= 1/1000 P(lose) = 999/1000 2) Clearly quantitative: It deals with numbers! I have searched the internet for a nice explanation: http://regentsprep.org/REgents/math/ALGEBRA/AD1/qualquant.htm 3) This is a example of an experiment. There also twopossibilities. blind or double blind. Blind means that only thepatients do not know if they get the medicine or the placebo andDouble Blind means that both the patients and the doctors do notknow. See also: http://en.wikipedia.org/wiki/Blind_experiment I hope this helps!