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For its "music 360 "survey, nielsen co asked teenagers and adults how each group has listened to music in the past 12 months. Nearly two thirds of U.s teenagers under the age of 18 say they use googleinc's video sharing site to listen to music and 35% of the teenagers said they use pandora media Inc's custom online radio service( the wall street journal, august 14, 2012). Suppose 10 teenagers are selected randomly to be interviewed about how they listen to music.
a. is randomly selecting 10 teenagers and asking whether or not they use pandora media inc's online service a binomial experiment?
b. what is the probability that none of the 10 teenagers use pandora media inc, online radio
c. what is the proabbility that 4 out of the 10 teenagers use pandora media inc online radio service?
d. what is the probability that at least 2 of the 10 use pandora media online radio service?
You're at a school fair where one of the games is "Spin the Wheel". Players spin a giant wheel with numbers 1-40. Look at each of the criteria and express the answers as a decimal, fraction and a percentage.
An oil storage tank is in the shape of a cylinder, is 5 m high and has a diameter of 8 m. The oil tank is three-fourths full. Find the number of cubic meters of oil in the tank. Round to the nearest hundredth. Use 3.14 for pi.
Important information about Elliptic boundary value problem (lap) means the Laplacian Vrr means the second derivative of V with respect to r
Identify the slope and y intercept of the equation.
The mass of Uranus is about 8.7 x 10^22 metric tons. The mass of the sun is about 1.998 x 10^27 metric tons. About how many times the mass of Uranus is the mass of the sub? Give you answer in scientific notation.
a company that makes fortune cookies makes them in batches of 1000 cookies. the fortunes in the cookies are distributed
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What percent of the cruises will have 1,970 passengers or more? What percent of the cruises will have 1,600 or fewer passengers? How many passengers are on the cruises with the fewest 25 percent of passengers?
The bucket is filled with 36 lb of water and is pulled up at a rate of 4 ft/sec, but water leaks out of the bucket at a rate of 0.6 lb/sec. Find the work done in pulling the bucket to the top of the well (in ft-lb).
Find the distance between two ships from the word problem and From a lighthouse, the lighthouse keeper sees two ships
The hypothesized developmental differences
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