Student's T Distribution Percentage Points Table

The below given table gives you the percentage points of the student's t distribution on This table gives percentage points of the t-distribution on v degrees of freedom. As The t-distribution becomes closer to the standard normal distribution as the number of degrees of freedom increases.

ν60.0%66.7%75.0%80.0%87.5%90.0%95.0% 97.5% 99.0% 99.5% 99.9%
10.3250.5771.0001.3762.4143.0786.31412.70631.82163.657318.31
20.2890.5000.8161.0611.6041.8862.9204.3036.9659.92522.327
30.2770.4760.7650.9781.4231.6382.3533.1824.5415.84110.215
40.2710.4640.7410.9411.3441.5332.1322.7763.7474.6047.173
50.2670.4570.7270.9201.3011.4762.0152.5713.3654.0325.893
60.2650.4530.7180.9061.2731.4401.9432.4473.1433.7075.208
70.2630.4490.7110.8961.2541.4151.8952.3652.9983.4994.785
80.2620.4470.7060.8891.2401.3971.8602.3062.8963.3554.501
90.2610.4450.7030.8831.2301.3831.8332.2622.8213.2504.297
100.2600.4440.7000.8791.2211.3721.8122.2282.7643.164.144
110.2600.4430.6970.8761.2141.3631.7962.2012.7183.104.025
120.2590.4420.6950.8731.2091.3561.7822.1792.6813.053.930
130.2590.4410.6940.8701.2041.3501.7712.1602.6503.013.852
140.2580.4400.6920.8681.2001.3451.7612.1452.6242.973.787
150.2580.4390.6910.8661.1971.3411.7532.1312.6022.943.733
160.2580.4390.6900.8651.1941.3371.7462.1202.5832.923.686
170.2570.4380.6890.8631.1911.3331.7402.1102.5672.893.646
180.2570.4380.6880.8621.1891.3301.7342.1012.5522.873.610
190.2570.4380.6880.8611.1871.3281.7292.0932.5392.863.579
200.2570.4370.6870.8601.1851.3251.7252.0862.5282.843.552
210.2570.4370.6860.8591.1831.3231.7212.0802.5182.833.527
220.2560.4370.6860.8581.1821.3211.7172.0742.5082.813.505
230.2560.4360.6850.8581.1801.3191.7142.0692.5002.803.485
240.2560.4360.6850.8571.1791.3181.7112.0642.4922.793.467
250.2560.4360.6840.8561.1781.3161.7082.0602.4852.783.450
260.2560.4360.6840.8561.1771.3151.7062.0562.4792.773.435
270.2560.4350.6840.8551.1761.3141.7032.0522.4732.773.421
280.2560.4350.6830.8551.1751.3131.7012.0482.4672.763.408
290.2560.4350.6830.8541.1741.3111.6992.0452.4622.753.396
300.2560.4350.6830.8541.1731.3101.6972.0422.4572.753.385
350.2550.4340.6820.8521.1701.3061.6902.0302.4382.723.340
400.2550.4340.6810.8511.1671.3031.6842.0212.4232.703.307
450.2550.4340.6800.8501.1651.3011.6792.0142.4122.693.281
500.2550.4330.6790.8491.1641.2991.6762.0092.4032.673.261
550.2550.4330.6790.8481.1631.2971.6732.0042.3962.663.245
600.2540.4330.6790.8481.1621.2961.6712.0002.3902.663.232
0.2530.4310.6740.8421.1501.2821.6451.9602.3262.5763.090


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