Determine probability that total bill will lies in range

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Reference no: EM13110983

At the starting of winter, homeowner evaluates that probability is 0.4 that his total heating ball for three winter months will be less than months will be less than $380. He also evaluates that probability is 0.6 that total bill will be less than $460.

a. Determine the probability that total bill will be between #380 and $460?
b. Given no further information, what can be said about probability that total will be less than $400?

Reference no: EM13110983

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