In a random survey, 25 out of 150 people were able to give a correct answer to the question asked. If 500 people are surveyed, about how many would be expected to answer the question correctly?
+6251 given the survey data the best guess you can make for how likely it it someone will get the right answer is
25/150 = 1/6
So applying this to 500 people you get 500 * 1/6 = 500/6
$${\frac{{\mathtt{500}}}{{\mathtt{6}}}} = {\frac{{\mathtt{250}}}{{\mathtt{3}}}} = {\mathtt{83.333\: \!333\: \!333\: \!333\: \!333\: \!3}}$$
So about 83 people will get the answer correct out of 500.
+6251 given the survey data the best guess you can make for how likely it it someone will get the right answer is
25/150 = 1/6
So applying this to 500 people you get 500 * 1/6 = 500/6
$${\frac{{\mathtt{500}}}{{\mathtt{6}}}} = {\frac{{\mathtt{250}}}{{\mathtt{3}}}} = {\mathtt{83.333\: \!333\: \!333\: \!333\: \!333\: \!3}}$$
So about 83 people will get the answer correct out of 500.
