What is 15,196 rounded to the nearest thousand?A. 15,000B. 15,200C.16,000D. 20,000
2 answers:
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and
. So we have a remainder of
and
. Subtracting this from the previous remainder gives a new remainder
and
. Subtracting this from the previous remainder gives a new one of
and we're done since 2 does not divide . So we have
The arc length, radius and the included angle are related as
where
is in radians.
The radius is given by
Correct choice is (B).
Answer:
The score that separates the lower 5% of the class from the rest of the class is 55.6.
Step-by-step explanation:
Problems of normally distributed samples 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.
In this question:
Find the score that separates the lower 5% of the class from the rest of the class.
This score is the 5th percentile, which is X when Z has a pvalue of 0.05. So it is X when Z = -1.645.
The score that separates the lower 5% of the class from the rest of the class is 55.6.