Answer:
Answer:
In finding the area between z-scores, locate the z-score values on the z-score table first then subtract the values.
In finding the area to the left, simply locate the z-score value on the z-score table.
In finding the area the the right, locate the z-score value on the z-score table then subtract it to 1.
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1. between Z₁ = 0 and Z₂ = 2.96
Z₁ = 0 = 0.5000
Z₂ = 2.96 = 0.9985
= 0.9985 - 0.5000
⇒0.4985
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2. to the left of z = 1.78
Z = 1.78
⇒ 0.9625
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3. to the right z = 0.18
Z = 0.18 = 0.5714
= 1 - 0.5714
⇒0.4286
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4. between Z₁ = -2.5 and Z₂ = 1.5
Z₁ = - 2.5 = 0.0062
Z₂ = 1.5 = 0.9332
= 0.9332 - 0.0062
⇒0.927
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5. to the left of z = -0.88
Z = - 0.88
⇒0.1894
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