Two-digit lottery number
Suppose two different states each pick a two-digit lottery number between 00 and 99 (for a 100 possible numbers). What is the probability that both states pick the number 13?
A) 2/100
B) 1/100
C) 1/200
D) 1/10,000
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Elizabeth has just put 4 new spark plugs in her car. For each spark plug, the probability that it will fail in the next 50,000 miles is 1/100 (which is 0.01), and is independent from one spark plug to the next. What is the probability that none of
A medical treatment has a success rate of 0.8. Two patients will be treated with this treatment. Assuming the results are independent for the two patients, what is the probability that neither one of them will be successfully cured?
Two point charges are on the y-axis. A 5.0 µC charge is located at y = 1.10 cm, and a -2.00 µC charge is located at y = -1.90 cm. (a) Find the total electric potential at the origin.
A standard 52-card deck is shuffled and 5 cards are picked, without replacement, from the top of the deck. The probability that the first four cards are a red suit (Heart or Diamond) and the last card is a black suit (Spade or Club) is
Calculate the following the pressure of carbon dioxide at the surface of the limestone at 1000k. The rate of decomposition of limestone at 1000k (in moles per square meter of surface per second).
A Breathalyzer instrument contains two ampules, each of which contains 0.75 mg K2Cr2O7 dissolved in 3 mL of 9 mol L 1 H2SO4(aq). One of the ampules is used as reference.
A near-sighted person might correct his vision by wearing diverging lenses with focal length = 55 cm. When wearing his glasses, he looks not at actual objects but at the virtual images of those objects formed by his glasses. Suppose he looks at a
Methane enters a heat exchanger at a volumetric flow rate of 120.0 m3/min, at a pressure of 1.013 bar and temperature of 5.0°C. At these conditions, the specific enthalpy of methane is -45.181 kJ/kg.
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