Round 547,639 to each place

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters