Mathematics, 11.12.2020 01:50 joeyhd
3. A bag contains: 5 red marbles, 6 blue marbles, 3 green marbles, 4 black
marbles, and 2 yellow marbles. A marble will be drawn form the bag and
replaced 100 times. What is a reasonable prediction for the number of times
a green or black marble will be drawn?
Answers: 1
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At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec
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3. A bag contains: 5 red marbles, 6 blue marbles, 3 green marbles, 4 black
marbles, and 2 yellow ma...
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