It is possible to score higher than 1600 on the combined mathematics and reading portions of the sat, but scores 1600 and above are reported as 1600. suppose the distribution of sat scores (combining mathematics and reading) was approximately normal with mean of 1003 and standard deviation of 220. what proportion of sat scores for the combined portions were reported as 1600? that is, what proportion of sat scores were actually higher than 1600? (enter an answer rounded to four decimal places.)

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

Bring the fraction a/a-4 to a denominator of 16-a^2

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is