tag:blogger.com,1999:blog-2886317406670251375.post7264534673643427598..comments2023-10-28T15:42:54.942+08:00Comments on PSLE: Graph PSLE 2010 P2 Q15PSLEhttp://www.blogger.com/profile/03365618807032152264noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2886317406670251375.post-68427439923481423462011-03-04T15:40:36.906+08:002011-03-04T15:40:36.906+08:00Need some help...
Three balls are thrown at rand...Need some help...<br /><br /><br />Three balls are thrown at random into five bowls so that each ball has the same chance of going into any bowl independently of wherever the other 2 balls fall. Determine the probability distribution of the number of empty bowls. <br /><br />Answer: 0.48 or 12 / 25Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2886317406670251375.post-12873012915054618922011-01-01T05:27:52.102+08:002011-01-01T05:27:52.102+08:00As appeared in PSLE 2010 exam:
Chris filled a tan...As appeared in PSLE 2010 exam:<br /><br />Chris filled a tank with water using two taps. He turned on Tap A first and after 4 minutes, he also turned on Tap B. Both taps were turned off at the same time when the tank was completely filled without overflowing.<br /><br />The graph below shows the amount of water in the tank over 16 minutes.<br /><br />Graph as shown:<br />Y-axis: Volume in lites, scale labelled from 0 to 40 and each interval was 5 litres.<br /><br />X-axis: Time in minutes, scale labelled from 0 to 16 min and each interval was 2 minutes.<br /><br />Note: X-axis, Y-axis<br />Start at 0.0<br />Next at 4,5<br />Next at 10, 35<br />Final at 16, 35<br /> <br />(a) What fraction of the tank was filled 4 minutes after Tap A was turned on? Express your answer in the simplest form.<br /><br />(b) In one minute, how many litres of water flowed from Tap B?Anonymousnoreply@blogger.com