Jacksons Cell Phone company estimates with a 60% probability that the sales of Cell phones in 2021 will be 45,000 units, about the same as in 2020. He plans to begin selling them on-line in 2021 and believe there is a 20% probability that potential sales would increase to 90,000 cell phones.. There is also a 20% probability that government regulations on selling cell phones online will limit sales to 30,000 units.

What is the expected sales of cell phones for 2021. Show your calculations.