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answerhappygod
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Posts: 899603Joined: Mon Aug 02, 2021 8:13 am
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by answerhappygod Sat May 21, 2022 10:10 am
A voltmeter is used to measure a known voltage of 110 V. Fifty
percent of the readings are within 0.5 V of the mean value.
Assuming a normal distribution for the error, estimate the standard
deviation for the voltmeter. What is the probability that a single
reading will have an error greater than 1.0 V?
A Voltmeter Is Used To Measure A Known Voltage Of 110 V Fifty Percent Of The Readings Are Within 0 5 V Of The Mean Valu 1 (113.3 KiB) Viewed 11 times
TABLE 6.3 Area Under the Normal Distribution From z = 0 to z A(z) 0 Z Z 0.01 0.02 0.05 0.06 0.07 0.08 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 0.00 .0000 .0398 .0793 .1179 .1554 .1915 .2257 .2580 .2881 .3159 .3413 .3643 .3849 .4032 .4192 .4332 .4452 .4554 .4641 .4713 .4772 .0040 .0438 .0832 .1217 .1591 .1950 2291 2611 2910 3186 3438 .3665 .3869 .4049 .4207 .4345 .4463 ,4564 .4649 4719 .4778 .0080 .0478 .0871 .1255 1628 .1985 .2324 .2642 .2939 .3212 .3461 3686 .3888 .4066 .4222 .4357 .4474 .4573 .4656 .4726 .4783 0.03 .0120 .0517 .0910 .1293 .1664 2019 2357 .2673 .2967 -3238 .3485 .3708 .3907 4082 .4236 .4370 .4484 .4582 .4664 .4732 .4788 0.04 .0160 .0557 .0948 .1331 . 1700 .2054 .2389 .2704 .2995 .3264 .3508 .3729 -3925 .4099 .4251 .4382 .4495 .4591 .4671 .4738 .4793 .0199 .0596 .0987 .1368 .1736 .2088 .2422 .2734 .3023 .3289 3531 .3749 .3944 4115 .4265 .4394 .4505 .4599 .4678 .4744 .4798 .0239 .0636 .1026 .1406 .1772 .2123 .2454 .2764 3051 .3315 .3554 .3770 3962 .4131 .4279 .4406 .4515 .4608 .4686 .4750 .4803 .0279 .0675 .1064 .1443 .1808 .2157 .2486 .2794 .3078 .3340 .3577 3790 3980 4147 4292 4418 .4525 .4616 4693 .4756 .4808 .0319 .0714 .1103 .1480 .1844 .2190 .2517 .2823 3106 -3365 3599 .3810 .3997 .4162 .4306 .4429 .4535 .4625 .4699 .4761 .4812 0.09 .0359 .0753 .1141 .1517 .1879 .2224 .2549 .2852 .3133 .3389 .3621 .3830 .4015 4177 .4319 .4441 .4545 .4633 .4706 4767 .4817 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
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