greend0719
19.08.2019 •
Mathematics
Circle p has radius 10cm. two perpendicular radii are drawn, and a smaller circle is drawn tangent to both radii and tha larger circle. what is the radius of the smaller circle?
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Ответ:
1/2 of the larger circle
Step-by-step explanation:
Ответ:
2.28% of players are under 86kg
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 zscore 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 pvalue, we get the probability that the value of the measure is greater than X.
The weights of the players were distributed normally with a mean of 98kg and a standard deviation of 6kg.
This means that
What percentage of players are under 86kg?
The proportion is the pvalue of Z when X = 86. So
has a pvalue of 0.0228
0.0228*100% = 2.28%
2.28% of players are under 86kg