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dlshadowmorfe
12.02.2020 •
Mathematics
The mean of a normal probability distribution is 500; the standard deviation is 10.
(a) About 68% of the observations lie between what two values?
(b) About 95% of the observations lie between what two values?
(c) Practically all of the observations lie between what two values?
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Ответ:
a) (490,510)
b) (480,520)
c) (470,530)
Step-by-step explanation:
Mean, μ = 500
Standard Deviation, σ = 10
Empirical Rule:
According to Empirical rule almost all data lies within three standard deviation of mean for a normal distribution.About 68% of data lies within one standard deviation of the mean.About 95% of data lies within two standard deviation of mean.About 99.7% of data lies within three standard deviation of mean.a) 68% of the observations
About 68% of data lies within 490 and 510.
b) 95% of the observations
About 95% of data lies within 480 and 520.
c) All the observations
All of the observations lie between 470 and 530.
Ответ:
-2/3
Step-by-step explanation: