Question: For a normal curve with mean =50 and standard deviation =4 , area to the left mean is________ 1. 0.45 2. 0.498 3. 0.5 4.

For a normal curve with mean =50 and standard deviation =4 , area to the left mean is________

1. 0.45

2. 0.498

3. 0.5

4. 0.55

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