PROBLEM SOLVING INVOLVING THE NORMAL CURVE CONCEPTS
Given = 30 and = 4.5. Express the raw score for each of the following.
1. z = 1.25
2. z = -1.67
3. z = 2.3
4. z = -0.30
5. z = 1.96
Given, "\\mu=30,\\sigma=4.5"
1. z = 1.25
Raw score "x=\\mu+z\\times \\sigma=30+1.25\\times 4.5=35.625"
2. z = -1.67
Raw score "x=\\mu+z\\times \\sigma=30-1.67\\times 4.5=22.485"
3. z = 2.3
Raw score "x=\\mu+z\\times \\sigma=30+2.3\\times 4.5=40.35"
4. z = -0.30
Raw score "x=\\mu+z\\times \\sigma=30-0.30\\times 4.5=28.65"
5. z = 1.96
Raw score "x=\\mu+z\\times \\sigma=30+1.96\\times 4.5=38.82"
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