Which set of numbers is correctly ordered from least to greatest?
1 answer:
Answer:
First option.
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Step-by-step explanation:
The given set of numbers are:
And it is required to order the set of numbers correctly from least to greatest.
The easiest way is to convert all numbers to decimal and comparing it.
So, The order from least to greatest is as following
So, the correct answer is first option.
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Answer:
99.89% of students scored below 95 points.
Step-by-step explanation:
Problems of normally distributed samples are 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 problem, we have that:
What percent of students scored below 95 points?
This is the pvalue of Z when X = 95. So
has a pvalue of 0.9989.
99.89% of students scored below 95 points.