Areas Under The Standardised Normal Distribution

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PGBM23

Probabilities (areas) under the standardised normal distribution:

Z 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0

0 0 0.0398 0.0793 0.1179 0.1554 0.1915 0.2257 0.258 0.2881 0.3159 0.3413 0.3643 0.3849 0.4032 0.4192 0.4332 0.4452 0.4554 0.4641 0.4713 0.4772 0.4821 0.4861 0.4893 0.4918 0.4938 0.4953 0.4965 0.4974 0.4981 0.4987

0.01 0.004 0.0438 0.0832 0.1217 0.1591 0.195 0.2291 0.2611 0.291 0.3186 0.3438 0.3665 0.3869 0.4049 0.4207 0.4345 0.4463 0.4564 0.4649 0.4719 0.4778 0.4826 0.4864 0.4896 0.492 0.494 0.4955 0.4966 0.4975 0.4982 0.4987

0.02 0.008 0.0478 0.0871 0.1255 0.1628 0.1985 0.2324 0.2642 0.2939 0.3212 0.3461 0.3686 0.3888 0.4066 0.4222 0.4357 0.4474 0.4573 0.4656 0.4726 0.4783 0.483 0.4868 0.4898 0.4922 0.4941 0.4956 0.4967 0.4976 0.4982 0.4987

0.03 0.012 0.0517 0.091 0.1293 0.1664 0.2019 0.2357 0.2673 0.2967 0.3238 0.3485 0.3708 0.3907 0.4082 0.4236 0.437 0.4484 0.4582 0.4664 0.4732 0.4788 0.4834 0.4871 0.4901 0.4925 0.4943 0.4957 0.4968 0.4977 0.4983 0.4988

0.04 0.016 0.0557 0.0948 0.1331 0.17 0.2054 0.2389 0.2704 0.2995 0.3264 0.3508 0.3729 0.3925 0.4099 0.4251 0.4382 0.4495 0.4591 0.4671 0.4738 0.4793 0.4838 0.4875 0.4904 0.4927 0.4945 0.4959 0.4969 0.4977 0.4984 0.4988

0.05 0.0199 0.0596 0.0987 0.1368 0.1736 0.2088 0.2422 0.2734 0.3023 0.3289 0.3531 0.3749 0.3944 0.4115 0.4265 0.4394 0.4505 0.4599 0.4678 0.4744 0.4798 0.4842 0.4878 0.4906 0.4929 0.4946 0.496 0.497 0.4978 0.4984 0.4989

0.06 0.0239 0.0636 0.1026 0.1406 0.1772 0.2123 0.2454 0.2764 0.3051 0.3315 0.3554 0.377 0.3962 0.4131 0.4279 0.4406 0.4515 0.4608 0.4686 0.475 0.4803 0.4846 0.4881 0.4909 0.4931 0.4948 0.4961 0.4971 0.4979 0.4985 0.4989

0.07 0.0279 0.0675 0.1064 0.1443 0.1808 0.2157 0.2486 0.2794 0.3078 0.334 0.3577 0.379 0.398 0.4147 0.4292 0.4418 0.4525 0.4616 0.4693 0.4756 0.4808 0.485 0.4884 0.4911 0.4932 0.4949 0.4962 0.4972 0.4979 0.4985 0.4989

0.08 0.0319 0.0714 0.1103 0.148 0.1844 0.219 0.2517 0.2823 0.3106 0.3365 0.3599 0.381 0.3997 0.4162 0.4306 0.4429 0.4535 0.4625 0.4699 0.4761 0.4812 0.4854 0.4887 0.4913 0.4934 0.4951 0.4963 0.4973 0.498 0.4986 0.499

0.09 0.0359 0.0753 0.1141 0.1517 0.1879 0.2224 0.2549 0.2852 0.3133 0.3389 0.3621 0.383 0.4015 0.4177 0.4319 0.4441 0.4545 0.4633 0.4706 0.4767 0.4817 0.4857 0.489 0.4916 0.4936 0.4952 0.4964 0.4974 0.4981 0.4986 0.499

The above (standardised) normal distribution values were generated with MS Excel.

Workshop No 6 – PGBM23 – Jeff Evans

PGBM23

Probabilities (areas) under the ‘students’ ‘t’ distribution:

0

tv(α)

-tv(α)

0

tv(α)

P(Tv > tv(α)) = α P(Tv > tv(α) or Tv < -tv(α)) = 2α (for v degrees of freedom (dof)) alpha 2 alpha V dof 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 40 60 120 INF 0.4 0.8 0.325 0.289 0.277 0.271 0.267 0.265 0.263 0.262 0.261 0.26 0.26 0.259 0.259 0.258 0.258 0.258 0.257 0.257 0.257 0.257 0.257 0.256 0.256 0.256 0.256 0.256 0.256 0.256 0.256 0.256 0.255 0.254 0.254 0.253 0.25 0.5 1 0.816 0.765 0.741 0.727 0.718 0.711 0.706 0.703 0.7 0.697 0.695 0.694 0.692 0.691 0.69 0.689 0.688 0.688 0.687 0.686 0.686 0.685 0.685 0.684 0.684 0.684 0.683 0.683 0.683 0.681 0.679 0.677 0.674 0.1 0.2 3.078 1.886 1.638 1.533
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