Given: Mean μ = 61.2 and standard deviation σ =21.4
The Z score of the value x=45 is given by
Z =
Z =
Z =
Z = -0.757
The z-score value for 45 rounded to nearest tenth is -0.8
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Given: Mean μ = 61.2 and standard deviation σ =21.4
The Z score of the value x=45 is given by
Z =
Z =
Z =
Z = -0.757
The z-score value for 45 rounded to nearest tenth is -0.8