1
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438
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69. 0 8, hope that helped
Biannual and semiannual can be used interchangeably; they both mean “twice a year<span>.” But biennial describes something that occurs every two </span>years<span>.
</span>
Answer:
2.28%
Step-by-step explanation:
Mr. bowens test is normally distributed with a mean (μ) of 75 and a standard deviation (σ) of 3 points.
The z score is used in probability to show how many standard deviation is a raw score below or above the mean. The formula for the z score (z) is given by:

For a raw score (x) of 81 points, the z score can be calculated by:

Therefore from the normal probability distribution table, the probability that a randomly selected score is greater than 81 can be given as:
P(x > 81) = P(z > 2) = 1 - P(z < 2) = 1 - 0.9772 = 0.0228 = 2.28%
<em>Answer is x + 12</em>
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<h2>
Explanation:</h2>
Hello! Recall that you have to write clear questions in order to get exact answers. So I'll help you assuming that the two expressions are the following:
First expression:

Second expression:

So the operation we need to perform is:

Recall some rules:

Hence:

<h2>Learn more:</h2>
Simplify: brainly.com/question/1291365
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