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Find the measure of angle 6
2 answers:
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It is already in the simplest form. It can be written as 0.216 in decimal form (rounded to 6 decimal places).
Answer:
0.15866.
Step-by-step explanation:
We have been given that on average, electricians earn approximately μ= $54,000 per year in the united states. Assume that the distribution for electricians' yearly earnings is normally distributed and that the standard deviation is σ= $12,000. We are asked to find the probability that the sample mean is greater than $66,000.
First of all, we will find the z-score corresponding to 66,000 using z-score formula.
Now, we need to find the probability that z-score is greater than 1 that is .
Upon using formula , we will get:
Upon using normal distribution table, we will get:
Therefore, the probability that the sample mean is greater than $66,000 would be 0.15866 or approximately .