HP 39g hp 39g+ (39g & 40g)_mastering the hp 39g+_English_E_F2224-90010.pdf - Page 131
Makelist80, 2*lnrandom*sin2*random, X
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Example 4: Simulate 100 obs. on a normal N(µ=80, σ2=50). Ensure that MODES is set to radian measure and type: MAKELIST(80+ 50*( (-2*LN(RANDOM))*sin(2*RANDOM)), X,1,100,1) C2 Example 5: Simulate 50 obs. on an exponential distribution (mean = 2). In the HOME view type: MAKELIST(-2*LN(1-RANDOM),1,50,1) C2 As an illustration, the result of this particular simulation is shown graphically on the right. Its mean turned out to be 2.067 (3 decimal places.). Yours will be different of course after all, that's the point of using random numbers! Calculator Tip The RANDOM function is not truly 'random' any more than it is on any computer. You can, however, make it as random as possible by using the RANDSEED command. For information on this see page 281. 131
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