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# Using the standard normal curve, what is the closest z-score for the given conditions:?

1) 74.9% of the total area is to the left of z

2) 25.1% of the total area to the right of z

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- PatsyBeeLv 41 decade ago
Change your percents to decimals. If you're using the z table you want to find the four-digit decimal that's closest, and then find the corresponding z score.

1) .7486 is closest to .7490. The z score is 0.67

2) Since this goes to the right, first subtract your decimal from 1 because the table is set up for areas to the left of z.

1 - .2510 = .7490 Your answer will be the same as the first.

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