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grade distributions each row in the table below is a proposed grade distribution for a class identify each as a valid
health coverage frequencies the behavioral risk factor surveillance system brfss is an annual telephone survey designed
joint and conditional probabilities pa 03 pb 07a can you compute pa and b if you only know pa and pbb assuming that
infant mortality the infant mortality rate is defined as the number of infant deaths per 1000 live births this rate is
air quality daily air quality is measured by the air quality index aqi reported by the environmental protection agency
distributions and appropriate statistics part i for each of the following state whether you expect the distribution to
distributions and appropriate statistics part ii for each of the following state whether you expect the distribution to
tv watchers students in an ap statistics class were asked how many hours of television they watch per week including
exam scores the average on a history exam scored out of 100 points was 85 with a standard deviation of 15 is the
facebook friends facebook data indicate that 50 of facebook users have 100 or more friends and that the average friend
income at the coffee shop the first histogram below shows the distribution of the yearly incomes of 40 patrons at a
commute times the us census collects data on time it takes americans to commute to work among many other variables the
hispanic population the us census collects data on race and ethnicity of americans among many other variables the
antibiotic use in children the bar plot and the pie chart below show the distribution of pre-existing medical
views on immigration 910 randomly sampled registered voters from tampa fl were asked if they thought workers who have
sampling strategies a statistics student who is curious about the relationship between the amount of time students
reading the paper below are excerpts from two articles published in the ny timesa an article titled risks smokers found
shyness on facebook given the anonymity afforded to individuals in online interactions researchers hypothesized that
light and exam performance a study is designed to test the effect of light level on exam performance of students the
vitamin supplements in order to assess the effectiveness of taking large doses of vitamin c in reducing the duration of
light noise and exam performance a study is designed to test the effect of light level and noise level on exam
music and learning you would like to conduct an experiment in class to see if students learn better if they study
exercise and mental health a researcher is interested in the effects of exercise on mental health and he proposes the
chia seeds and weight loss chia pets - those terra-cotta figurines that sprout fuzzy green hair - made the chia plant a
mammal life spans data were collected on life spans in years and gestation lengths in days for 62 mammals a scatterplot