Ace Heating and Air Conditioning Service finds that the amount of time a repairman needs to fix a furnace is uniformly d

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Ace Heating And Air Conditioning Service Finds That The Amount Of Time A Repairman Needs To Fix A Furnace Is Uniformly D 1 (31.47 KiB) Viewed 71 times

Ace Heating and Air Conditioning Service finds that the amount of time a repairman needs to fix a furnace is uniformly distributed between 1.5 and four hours. Let x = the time needed to fix a furnace. 1) Find the value of a= 1.5 and be 4 2) Find the vlaue of h= 2.5 3) Find the mean time to fix the furnance = 2.75 4) Find the standard deviation time to fix the furnance 0.5208 Blank 1: 1.5 5) Find the probability that a repairman take more than 2.5 hours: 6) Find the probabilty that repairman take less than 2 hours: P(x ≤ 2). -60 Blank 2: 4 Blank 3: 2.5 Blank 4: 2.75 Blank 5: 0.5208 Blank 6: 0.72 up to 2 d.p. Blank 7: 60 up to 2 d.p. P(x ≥ 2.5). -0.72 in % in % Time left for this assessment: