4Find the standard normal area described P135

4.Find the standard normal area described: P(1.35<Z<2.44)

Solution

P( 1.35 <Z< 2.44 )
= P(Z<2.44) - P(Z<1.35)
= 0.9927 - 0.9115
= 0.0812

[To find P(Z<2.44) look in the standard normal table in the row 2.40 and column 0.04 (2.44 = 2.40+0.04), the value obtained is 0.9927]