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From a set of 1000 observations known to be normally distributed, the mean is 534 cm and SD is 13.5 cm.? 

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How many observations are likely to exceed 561 cm? How many will be between 520.5 cm and 547.5 cm? Between what limits will the middle 50% of the observations lie?
 

Asked in Science & Mathematics - 656 days ago

Tags: From a set of 1000 observations known to be normally distributed  the mean is 534 cm and SD is 13.5 cm. 

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22.8 or 23 observations are above 561 cm
682.6 or 683 observations lie between the range
The middle 50 would lie b/w 534+/-9.18 ie., 524.82 and 543.18
Refer probability distribution tables for calculations

Answered by rockin at Aug 4, 2010 07:38 AM

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