SOLUTION: P(x ≥ 30); μ = 19; σ = 3.9
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Question 1155920: P(x ≥ 30); μ = 19; σ = 3.9
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
using my TI-84 Plus calculator, i get p(x >= 30) equal to .0023974099.
using the online calculator at http://davidmlane.com/hyperstat/z_table.html, i get .0024.
this is the same answer rounded to 4 decimal digits.
results from the online calculator are shown below:
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