2) The number of mobile phones sold per day at a retail store varies as shown in the given probability distribution below. Find the expected numnber of mobile phones that will be sold in one day. 30...

Find the mean, variance, and standard deviation of the following probability distribution then interpret the computed values.

Extracted text: 2) The number of mobile phones sold per day at a retail store varies as shown in the given probability distribution below. Find the expected numnber of mobile phones that will be sold in one day. 30 33 38 40 50 P(x) 0.2 0.2 0.35 0.23 0.02