The demand for Carolina Industries' product varies greatly from month to month. Based on the past two years of data, the following probability distribution shows the company's monthly demand:   Unit Demand Probability 100 0.3 300 0.25 400 0.15 500 0.3 What are the variance and standard deviation for the number of units demanded? If required, round your answers to two decimal places. Variance =   Standard deviation =

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The demand for Carolina Industries' product varies greatly from month to month. Based on the past two years of data, the following probability distribution shows the company's monthly demand:

 

Unit Demand Probability
100 0.3
300 0.25
400 0.15
500 0.3

What are the variance and standard deviation for the number of units demanded? If required, round your answers to two decimal places.

Variance =  
Standard deviation =
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