Answer:
You can be remodeling a pool or maybe a kitchen (like for a island or something)
Step-by-step explanation:
Answer: 6x6 =36
Step-by-step explanation:
Sorry if it's wrong, but should be right cause it makes sense.
Answer: The sum of the interior angles of a heptagon is 900 degrees.
Answer:
8
Step-by-step explanation:
The fact that DE is perpendicular to AC means triangles AED and CED are congruent and side AD is equal in length to side CD.
5x -20 = 2x +4
3x = 24 . . . . . . . add 20-2x
x = 8 . . . . . . . . . .divide by 3
The value of x is 8.
In the test that Professor Ivy gives, the score has Mean of 74 with a standard deviation of 8. I can't solve no.3 because you didn't upload curve
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There is a rule called "68-95-99.7" rule in normal distribution statistic. These 3 numbers represent the percentage of data that are within 1-3 z score from the mean respectively.
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4. The middle 68% of the class would score between what two values (what range of scores)?<span>
Data of middle 68% will be 34% above the mean and 34% below the mean. If you see the Z-score table, </span>34% above the mean(50%+34%=84%) that has 0.84 value would be Z=1. The same with 34% below the mean, Z=-1.<span>
Then, the data range would be:
range= score </span>mean <span> +/- (Z-score * standard deviation)
range= 74 +/- (1*8)
</span>range= 74 +/- 8= 66-82
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5. 99.7% of the students would have test scores between what two values (what range of scores)?
</span>Data of middle 99.7% will be 49.85% above the mean and 49.85% below the mean. If you see the Z-score table, 49.85% above the mean(50%+49.85% =99.85%) that has 0.985 value would be around Z=3. The same with 49.85% below the mean, Z=-3.
range= score mean +/- (Z-score * standard deviation)
range= 74 +/- (3*8)
range= 74 +/- 24= 50-98
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6. Write a sentence using the 99.7% range.
The data range of 99.7% could be interpreted these ways:
Around 99.7% of the student will have a score between 50-98.
If you pick a random student score, there is 99.7% that the score is between 50-98.
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