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a game is played using one die if the die is rolled and shows 4 the player wins 20 if the die shows anything else he
flowers are sold in pre-made bunches in the grocery store the number of flowers in a bunch is uniformly distributed and
a student is taking a multiple-choice exam in which each question hasnbspfour choices assuming that she has no
pxgt35 round to four decimal placeassume the random variable x is normally distributed with meannbspmu equals 50mu50and
the average iq score of a high school grade is 100 with a standard deviations of 2 use the empirical rule to estimate
the average score of students who took exam 1 was an 80 use the empirical rule to estimate the probability of a student
if a household has at least one cat there is a 30 probability that the household has at least one dog 30 of households
rachel is comparing three different recipes for chocolate fudge she asks her friends to taste her fudge and rate how
assuming a normal distribution families spend an average of 500 on their monthly cell phone bills with a standard
your sock drawer has 3 pairs of socks of black socks 4 pairs of brown socks 1 pair of yellow socks and 5 pairs of blue
normal probability distributionsthe reported scores on a nationally standardized achievement test for high school
if alpha 010 what is the confidence level of a statistical test based on the alpha level of the question to the left
consider the following dependent random consider the following dependent random
a head librarian supervises a number of libraries in a large county he wants to know if full-time library workers and
regressionthe purpose of least squares regression is to find an appropriate linear model for two quantitative variables
a consumer survey has derived the following probability distribution for the number of coffee cups drunk per day by
suppose your marlceting colleague used a known population mean and standard deviation to compute the standard error as
suppose a and b are mutually exclusive events we know the probability of a occurring is 040 while the probability of b
coin flips suppose you tested 50 coins by flipping each of them many timesfor each coin you perform a significance test
educationan education board declared that 64 of all students who appeared for examination had passed in 2015 whereas 58
inferenceharry was tested to see whether he could tell cotton fabric from rayon fabric by touch alone he got 18
gun control laws the gallup organization frequently conducts polls in which they ask the following question in general
weight loss in menmany polls have asked people whether they are trying to lose weight a gallup poll in november of 2008
literacy in 2015 in march 2016 the unesco institute for statistics uis reported that the literacy rate in zimbabwe was
annual sports meet for a schools annual sports meet 56 of boys enrolled for track events and 44 of boys enrolled for