2000 or 20,000
15 flight
about 9.7 years
(3+(3x3))/3=4
Because it is an unusual ratio and therefore should be given a different name to differentiate it from other common ratios. Gold is valuable and "Golden" is attributed to that which is attractive. The "Golden Ration" is considered attractive and has many uses.
There are many ways in which a scientist could reach their conclusion during the middle ages. They could just observe.
It is not always better to survey as many people as possible. The sample size needs to be representative of the population being studied to draw accurate conclusions. Too large a sample can be costly and time-consuming, while too small a sample may not provide reliable results. It is important to strike a balance between sample size and representativeness for meaningful survey results.
There are at least 2 million galaxies in the COSMOS survey (with billions of stars, planets, and moons in each one; as well as asteroids and nebulae). Their light has taken 13 billion years to reach Earth.
Six.
25
The Brown Survey, one among many other statistical surveys, is the best designed survey.
Colonial Survey has 185 pages.
Some of the infinitely many ratios are 130/10, 1300/100.
There are many examples of online survey tools. Examples of online survey tools include Survey Monkey, Zoomerang, Question Pro, Social Brite, SoGo Survey, and Key Survey.
There are infinitely many. They are any ratios of the form 47*k : k where k is an integer.
It's not possible for any public opinion survey to talk to EVERYBODY who has an opinion. So you have to try and find out what EVERYBODY's opinion is, by talking to only some of them. It takes some very sophisticated math to decide how many are enough, and how reliable your conclusions will be from that many interviews.
A survey should focus on how many people want what.