2-1.1 For each of the following situations, list any quantities that might reasonably be considered a random variable, state whether they are continuous or discrete, and indicate a reasonable range of values for each. a) A weather forecast gives the prediction for July 4th as high temperature, 84; low temperature, 67; wind, 8 mph; humidity, 75%; THI, 72; sunrise, 5:05 am; sunset, 8:45 pm. b) A traffic survey on a busy street yields the following values: number of vehicles per minute, 26; average speed, 35 mph; ratio of cars to trucks, 6.81; average weight, 4000 lb; number of accidents per day, 5. 110 CHAPTER 2. RANDOM VARIABLES c) An electronic circuit contains 15 ICs, 12 LEDs, 43 resistors, and 12 capacitors. The resistors are all marked 1000 2, the capacitors are all marked 0.01 μF, and the nominal supply voltage for the circuit is 5 V.
2-1.1 For each of the following situations, list any quantities that might reasonably be considered a random variable, state whether they are continuous or discrete, and indicate a reasonable range of values for each. a) A weather forecast gives the prediction for July 4th as high temperature, 84; low temperature, 67; wind, 8 mph; humidity, 75%; THI, 72; sunrise, 5:05 am; sunset, 8:45 pm. b) A traffic survey on a busy street yields the following values: number of vehicles per minute, 26; average speed, 35 mph; ratio of cars to trucks, 6.81; average weight, 4000 lb; number of accidents per day, 5. 110 CHAPTER 2. RANDOM VARIABLES c) An electronic circuit contains 15 ICs, 12 LEDs, 43 resistors, and 12 capacitors. The resistors are all marked 1000 2, the capacitors are all marked 0.01 μF, and the nominal supply voltage for the circuit is 5 V.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:2-1.1 For each of the following situations, list any quantities that might reasonably be
considered a random variable, state whether they are continuous or discrete, and indicate
a reasonable range of values for each.
a) A weather forecast gives the prediction for July 4th as high temperature, 84; low
temperature, 67; wind, 8 mph; humidity, 75%; THI, 72; sunrise, 5:05 am; sunset,
8:45 pm.
b) A traffic survey on a busy street yields the following values: number of vehicles per
minute, 26; average speed, 35 mph; ratio of cars to trucks, 6.81; average weight,
4000 lb; number of accidents per day, 5.
110
CHAPTER 2. RANDOM VARIABLES
c) An electronic circuit contains 15 ICs, 12 LEDs, 43 resistors, and 12 capacitors. The
resistors are all marked 1000 2, the capacitors are all marked 0.01 μF, and the
nominal supply voltage for the circuit is 5 V.
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