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Such optimism, much wow (y)
You might want to hear some stories of people who went BEFORE the final date and then extrapolate that to cover what will happen AFTER it

As I said, plenty of methods. And if it all fails - there's always studying it yourself.
 
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can anyone explaint to me the difference b/w systematic and random erors ( with examples)
Random error is the error which we can only minimize, and mostly involve the forces of nature (concentrate on the former statement). For example, you are performing the pendulum experiment. A gust of air blows and will cause the bob to move faster. Now this is not under your control. You cannot make the error 0 that is you cannot stop air from flowing (vacuum is another thing). However, you can minimize this error by closing all open windows and turning off the fan.

Systematic error is the error which you can make it 0, and it occurs in modern day devices (like stopwatches, micrometer screwgauge .etc) For example, you micrometer screwguage (M.S) has a positive zero error. You can eradicate this error by subtracting the zero error from the final reading. Thus the error is 0
 
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