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a professor has 30 students in his or her chemistry 101 course and wants to determine the probability that a certain
suppose that we regress the number of races a marathon runner wins on the average time it takes the runner in a
take a bigger samplenbspa management student is planning a project on student attitudes toward part-time work while
you are advertising on two television programs that achieve the reach percentages listed what is their combined
suppose we have a sample of 50 observations onnbspxnbspandnbspy andnbspsd of x andnbspsd of ynbspare both positive we
the social media site facebook is one of the most popular websites on the internet in january it received 170629000
a television ratings survey shows that 8 percent of the television audience in localville watches the evening news if
questionnbspsuppose the probability that team a will win the football game this weekend is 09 and the the probability
what is standard deviation and what does it have in common with measures of central
problem anam found that 12 percent of men and 8 percent of women have dental cavities assume that there are equal
2542 runners who took part in a 10km race had an average time of 1 hr and 11 minutes the standard deviation was 12
using chebysheffs theorm you have concluded that at least 7742 of the 2403 runners took between 597 and 779 minutes to
if an advertising campaign has an average frequency of 66 to an audience of 11000000 persons what is the number of
professor matt took a sample of 208 students from her morning class and a sample of 119 students from her evening class
for the following statistics a indicate whether the statistic is a count proportion or rate and b state whether the
the math quiz scores show that micro75 and sigma10 what quiz score is three standard deviations below the meansuppose x
compute the total and annual returns on the described investmentfournbspyears after buyingnbsp100nbspshares of xyz
a community college pays part-time teachers 60 per hour if they meet minimum qualifications to teach a course 70 per
suppose a 4-sided die with sides labeled 1 2 3 4 is rolled 2 timesb let a denote the event that a 1 is obtained on the
suppose two cards are selected from a deck of cards without replacement a deck has 52 cards how many outcomes are in
for a given year the rate of return on all stocks was normally distributed with a mean of 15 and a standard deviation
the human resources department of a very large organisation is trying to determine the proportion of all employees that
let abcd and e be sample space outcomes forming a sample spacesuppose that pa04 pb005 pc019 and pd013what is