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mylen [45]
3 years ago
14

IQ scores are measured with a test designed so that the mean is 120 and the standard deviation is 12. Consider the group of IQ s

cores that are unusual. What are the z scores that separate the unusual IQ scores from those that are​ usual? What are the IQ scores that separate the unusual IQ scores from those that are​ usual? (Consider a value to be unusual if its z score is less than minus2 or greater than​ 2.)What are the IQ scores that separate the unusual IQ scores from those that are​ usual?
Mathematics
1 answer:
Shkiper50 [21]3 years ago
7 0

Answer:

Step-by-step explanation:

Here a score is considered to be "unusual" if higher than 2 std. dev. from the mean OR lower than 2 std. dev. from the mean.

Thus, any score lower than (120 - 2[12]), or 96, or higher than (120 + 2[12] ), or 144, is considered to be "unusual."

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Tatiana [17]

Answer:

32

Step-by-step explanation:

6x-48+10=5x-6

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3 0
3 years ago
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First, we have to combine the like terms on the left side of the equation, resulting in

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Then, because we want the constants on the right side of the equation, we have to +9 to cancel out the -9 on the left side.

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Next, the a has a coefficient of 7, which it is multiplied by.  To undo multiplication, you have to divide.  Therefore, we should divide both sides by 7.

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3 years ago
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Aleksandr [31]

Answer:

Part A: 115

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Part B asks for the area, which is multiplying, so you multiply the numbers,

15 x 40 x 60 = <u>36000</u>

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You could try multiplying it a different way but get the same answer:

60 x 40 x 15 = <u>36000</u>

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I'm not sure if this is correct but I hope I helped

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Answer:

The Domain is X, range is Y

Step-by-step explanation:

Domain and Range is just another term for X-axis and Y-axis

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