Let x be a continuous random variable that follows a normal distribution with a mean of 200 and a standard deviation of 25. a. Find the value of x so that the area under the normal curve to the left...

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Let x be a continuous random variable that follows a normal distribution with a mean of 200 and a standard deviation of 25.


a. Find the value of x so that the area under the normal curve to the left of x is approximately .6330.


b. Find the value of x so that the area under the normal curve to the right of x is approximately .05.


c. Find the value of x so that the area under the normal curve to the right of x is .8051.


d. Find the value of x so that the area under the normal curve to the left of x is .0150.


e. Find the value of x so that the area under the normal curve between μ and x is .4525 and the value of x is less than μ.


f. Find the value of x so that the area under the normal curve between μ and x is approximately .4800 and the value of x is greater than μ.




Answered Same DayDec 25, 2021

Answer To: Let x be a continuous random variable that follows a normal distribution with a mean of 200 and a...

David answered on Dec 25 2021
131 Votes
VA532405_ER_SPC
Table entry
Table entry for z is the area under the standard normal curve
to the left of z
.
Standard Normal Probabilities
z
z .00
–3.4
–3.3
–3.2
–3.1
–3.0
–2.9
–2.8
–2.7
–2.6
–2.5
–2.4
–2.3
–2.2
–2.1
–2.0
–1.9
–1.8
–1.7
–1.6
–1.5
–1.4
–1.3
–1.2
–1.1
–1.0
–0.9
–0.8
–0.7
–0.6
–0.5
–0.4
–0.3
–0.2
–0.1
–0.0
.0003
.0005
.0007
.0010
.0013
.0019
.0026
.0035
.0047
.0062
.0082
.0107
.0139
.0179
.0228
.0287
.0359
.0446
.0548
.0668
.0808
.0968
.1151
.1357
.1587
.1841
.2119
.2420
.2743
.3085
.3446
.3821
.4207
.4602
.5000
.0003
.0005
.0007
.0009
.0013
.0018
.0025
.0034
.0045
.0060
.0080
.0104
.0136
.0174
.0222
.0281
.0351
.0436
.0537
.0655
.0793
.0951
.1131
.1335
.1562
.1814
.2090
.2389
.2709
.3050
.3409
.3783
.4168
.4562
.4960
.0003
.0005
.0006
.0009
.0013
.0018
.0024
.0033
.0044
.0059
.0078
.0102
.0132
.0170
.0217
.0274
.0344
.0427
.0526
.0643
.0778
.0934
.1112
.1314
.1539
.1788
.2061
.2358
.2676
.3015
.3372
.3745
.4129
.4522
.4920...
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