A box contains 4 red marbles, 8 blue marbles, and 2 green marbles. Five marbles will be drawn from the box without replacement. The standard error must be found for the percentage of blue marbles that will be drawn.
1. a box contains four red marbles, eight blue and two green. Five marbles will be drawn without
replacement. Find the SE for the percent of blue marbles drawn
Solution
Probabilty that the drawn marble is blue = 8/14 this is the probability for the first
withdrawal, next it follows as 7/13 , 6/12 , 5/11 , 4/10, 3/9 , 2/8, 1/7 thanks