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Mathematics 8 Online
OpenStudy (narusamisty):

Plz help with standard score problem Will give medal :D e) P (-z* < Z < z*) = .9000

jimthompson5910 (jim_thompson5910):

draw the bell curve |dw:1473912031536:dw|

jimthompson5910 (jim_thompson5910):

we're looking for some value of k such that P(-k < Z < k) = 0.90 |dw:1473912131080:dw|

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