Kimberly Lau plans to make three sales calls today. She estimates that the chance of making a

Question:

Kimberly Lau plans to make three sales calls today. She estimates that the chance of making a sale on any one call is about 30%. The calls are independent.
a. Construct a probability tree to produce the full probability for the random variable “number of sales”. Show results in the x, P(x) table format.
b. Show the graphically.
c. Compute the expected number of sales and the standard deviation of the sales Distribution
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