HP 40gs HP 39gs_40gs_Mastering The Graphing Calculator_English_E_F2224-90010.p - Page 122
calculators just out of the box then you wil see the same set of numbers, on both calcu
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Example 4: Simulate 100 observations on a normal random variable 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 observations on an exponential distribution with 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. If you use the RANDOM command repeatedly on two calculators just out of the box then you will see the same set of numbers on both calculators. This is because the RANDOM function uses a 'seed' value and this is the same initially for all calculators. It is possible to fix this by 'seeding' a new number using the RANDSEED command. For information on this see page 206. 122
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