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Dear students, as we all know, you have currently less than 2 weeks to D-day (ok, just kidding, your GP paper). As most of you are stressing out over what to study, how to study for this [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) (ii) (a) (b) (iii) Since the product moment correlation coefficient [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) Let number of calls in a period of 4minutes. (ii) Let length of time [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) Required Probability (ii) Required Probability (iii) Case 1: The [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. Unbiased estimate of population mean Unbiased estimate of population [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) In order to use stratified sampling, we need to know the sampling [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) (ii) For to exist must be one-one, thus least value of (iii) (iv) [...]

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) (ii) (iii) Let number of peak rate calls over the two three-month periods.

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions. (i) For the curve to have a turning point, (ii) (a) When (b) (iii)

Many students have asked me why it is important to for to be close to zero for the Maclaurin’s expansion to be a good approximation. So here, I plot it in the 4 curves: which is our actual [...]