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2 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics

1 answer:

CaHeK987 [17]2 years ago

3 0

Answer: b) 58%

Step-by-step explanation:

First, let's find the z-score using the formula: $z=\dfrac{x-\mu}{\sigma}$

$z=\dfrac{260-240}{100}=\dfrac{20}{100}=\boxed{0.20}$

Next, refer to the z-score table below to find the value of 0.20

Look on the left side for 0.20 and the top for 0.00 to find the percent for 0.20. The table shows the percent above the MEAN so you need to add the percent below the mean (50%) to the value in the table.

0.0793

+ 0.5

0.5793 = 57.93%

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