Step-by-step explanation:
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ANSWER
EXPLANATION
We want to write 100,000 using exponents.
This means that, we want to write 100,000 as an index number, that is a certain number raised to a certain index or exponent.
The exponent tells us how many times that number multiplies itself to give 100,000
Since 10 multiplies itself 5 times to give 100,000, we write
It would depend on what n was equal to
Answer:
15.39% of the scores are less than 450
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 percentage of the scores are less than 450?
This is the pvalue of Z when X = 450. So
has a pvalue of 0.1539
15.39% of the scores are less than 450
So, Our final answer is 145%