Determining probability-person will buy monthly gasoline

Reference no: EM1320468

Mean monthly gasoline purchase for family with 2 cars is 62 gallons. This statistic has normal distribution with standard deviation of 6 gallons. Family is chosen at random.

Q1) Determine the probability that person's monthly gasoline (gallon) buys will be between 50 and 67 gallons.

a) 0.2033

b) 0.7739

c) 0.9817

d) 0.0183

e) 0.7976

Q2) Determine the probability that person's monthly gasoline (gallon) purchases will be less than 67 gallons.

a) 0.2033

b) 0.7784

c) 0.9817

d) 0.0183

e) 0.7967

Q3) Determine the probability that person's monthly gasoline (gallon) purchases will be more than 50? gallons?

a) 0.2033

b) 0.7784

c) 0.9772

d) 0.0183

e) 0.7967

Reference no: EM1320468

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