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isabelvaldez123
08.06.2021 •
Mathematics
If the weight (in grams) of cereal in a box of Lucky Charms is N(489,6), what is the probability that the box will contain less than the advertised weight of 466 g
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Ответ:
0.000064 = 0.0064% probability that the box will contain less than the advertised weight of 466 g.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean
and standard deviation
, the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
N(489,6)
This means that![\mu = 489, \sigma = 6](/tpl/images/1366/6774/a6d6d.png)
What is the probability that the box will contain less than the advertised weight of 466 g?
This is the p-value of Z when X = 466. So
0.000064 = 0.0064% probability that the box will contain less than the advertised weight of 466 g.
Ответ:
Step-by-step explanation:
x is the third side
x² + 32² = 68²
x² = 68² - 32² = 3600
x = √3600 = 60