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marin [14]
4 years ago
15

Suppose you have a mean standardized score of 1500 points with a standard deviation of 150 points. This data is normally distrib

uted. What is the z-score of 900 points?
Mathematics
1 answer:
Bond [772]4 years ago
8 0

Answer:

z-score for 900 points = -4

Step-by-step explanation:

To find the z scores

z=(x-mean)/standard deviation

so

z=(900-1500)/150

z= -600/150

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Answer:

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Step-by-step explanation:

3.5(7−x)+32=106−1.5(4x+18)

Step 1: Simplify both sides of the equation.

3.5(7−x)+32=106−1.5(4x+18)

(3.5)(7)+(3.5)(−x)+32=106+(−1.5)(4x)+(−1.5)(18)(Distribute)

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Step 2: Add 6x to both sides.

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2.5x+56.5=79

Step 3: Subtract 56.5 from both sides.

2.5x+56.5−56.5=79−56.5

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Step 4: Divide both sides by 2.5.

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