Question 1179272
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Hi
Standard Normal curve with µ = 0 and σ = 1
Using TI or similarly an inexpensive calculator like an Casio fx-115 ES plus
Continuous curve
P( x < -1.45) = normalcdf(-9999,-1.45,0,1) = .0735

Wish You the Best in your Studies.
Standard Normal curve with various z-values shown:
{{{drawing(400,200,-5,5,-.5,1.5, graph(400,200,-5,5,-.5,1.5, exp(-x^2/2)), green(line(1,0,1,exp(-1^2/2)),line(-1,0,-1,exp(-1^2/2))),green(line(2,0,2,exp(-2^2/2)),line(-2,0,-2,exp(-2^2/2))),green(line(3,0,3,exp(-3^2/2)),line(-3,0,-3,exp(-3^2/2))),green(line( 0,0, 0,exp(0^2/2))),locate(4.8,-.01,z),locate(4.8,.2,z))}}}
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