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in a multiple choice exam there are 5 questions and 4 choices for each question a b c d nancy has not studied for the
the national safety council reported that 52 of american turnpike drivers are men a sample of 300 cars traveling
the board of a major credit card company requires that the mean wait time for customers when they call customer service
a normal distribution has a mean equal tonbsp45 what is the standard deviation of this normal distribution if 25 of the
two candidates face each other in an election the democratic candidate is supported by 58 of the population and the
a fair coin is flipped 100 times your friend proposes a bet where if it lands on heads 49 50 or 51 times you win 4 but
most analysts focus on the cost of tuition as the way to measure the cost of a college education but incidentals such
income can have significant effects on peoples spending patterns research studies have revealed that consumer
discrete probability variablesthirtynbsppercent of households say they would feel secure if they had 50000 in savings
consider the study of two insect populations at two experimental stations at station a the egg hatch rate computed from
1the r-squared of a linear regression model is equal to the proportion of the variance of the target explained by a
if an urn1 contains 6purle balls and 4red balls and urn2 contains 4purple balls and 6 red balls urn3 contains 4purple
in a fish tank there are 23 goldfish 4 angelfish and 9 guppies if a fish is selected at random find the probability
parents who did not finish high school have sat math scores x with mean 451 and standard deviation 103 scores y of
researchers randomly assigned 25 beginning students of russian to begin speaking practice immediately and another 25 to
the ph acidity of the liquor is critical for regulating dye uptake and hence the final color there arenbsp5nbspkettles
a nutritional scientist wishes to study the effect of storage time on the amount of vitamin c milligrams contained in
if a study was done to measure the total brain volume of patients that had schizophrenia and also of patients that are
calculating this answer for my statistics classa hockey team conceded 18 goals on average per season what is the
new york graduates tend to leave the state after graduating a study asked the students of nyu are you planning to stay
the number of cell phones per 100 residents in countries in europe is given in table 939 for the year 2010 the number
plastic sheets made by a machine are periodically monitored for fluctuations in thickness if the true standard
a set of score has a mean of mu 63 and a standard deviation of sigma 8 if these scores are standardized so that the
the acme insurance company has two types of customers careful and reckless a careful customer has an accident during
how do you calculate true population proportion if your defective sample is too small for example if you have 50 and