A normally-distributed data set has a mean of 30 and a standard deviation of 5.

What is the area under the standard normal curve for data greater than 35?

Enter your answer in the box.

Round your answer as a decimal rounded to the nearest thousandth.

Note: Do not give your answer as a percent.

Question

A normally-distributed data set has a mean of 30 and a standard deviation of 5.

What is the area under the standard normal curve for data greater than 35?

 

Enter your answer in the box.  

Round your answer as a decimal rounded to the nearest thousandth.

Note: Do not give your answer as a percent.

welshfella · Answer

Hold on - I'm stretching my powers of memory now!!!

lemanual · Answer

ok lol

welshfella · Answer

work out the z score first 
that is   (35 - mean ) / std dev = (35 - 30 ) / 5

lemanual · Answer

I'm confused :/

lemanual · Answer

Sorry :/

welshfella · Answer

35-30 = 5 

5/5 = 1

z score = 1

welshfella · Answer

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welshfella · Answer

the area with z> 1 is the shaded area

welshfella · Answer

this is equals the area corresponding to data greater than 35

welshfella · Answer

You can find this area from a table of a normal distribution

welshfella · Answer

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