Data analysis
What is the term for a numerical summary of data?
What is a statistic?
What is the probability of flipping a fair coin and getting heads?
What is .5 or 50%
What is the measure of spread that represents the difference between the largest and smallest values in a data set?
What is the range?
In a scatter plot, what type of relationship is indicated by points that form a straight line sloping upwards from left to right?
what is a positive linear relationship?
What is a simple random sample?
When graphing data, what type of plot is used to show the distribution of a single quantitative variable?
What is a histogram?
If you roll a 6 sided die, what is the probability of rolling a prime number?
What is .5 or 50%
What is the measure of center that represents the average value of a data set?
What is the mean?
What type of relationship is indicated by points that are scattered randomly around the plot with no apparent pattern?
What is stratified sampling?
What is dividing the population into homogeneous subgroups and then taking a SRS from each subgroup
What is the term for the value that occurs most frequently in a data set?
What is the mode?
What is the difference between mutually exclusive and independent events?
Mutually exclusive events cannot occur at the same time, while independent events are not influenced by each other
What is the measure of spread that represents the average distance of each data point from the mean?
What is the standard deviation?
In a scatterplot, what type of relationship is indicated by points that form a straight line sloping downwards from left to right?
What is a negative linear relationship?
What is a confounding variable?
What is a variable that influences both the independent and dependent variables, leading to different outcomes
In an experiment, what is the variable that is deliberately manipulated by the researcher?
What is the independent variable?
What is conditional probability?
what is the probability of an event given another event has occurred
What is the measure of center that represents the middle value of a data set when the values are ordered from least to greatest?
What is the median?
What is the measure of the strength and direction of a linear relatinoship between two quantitative variables?
What is the correlation coefficient?
What is the purpose of random assignment in experiments?
To make sure that each participant has an equal change of being assigned to any group within an experiment and helps minimize the effects of confounding variables.
What type of sampling method involves dividing the population into groups and then selecting individuals from each group?
What is stratified sampling?
What is the probability of an event that cannot occur?
What is 0?
What is the graphical dispaly of the 5 number summary of a data set?
What is a box plot?
What type of relationship is indicated by points that form a curve in the scatterplot?
What is a nonlinear relationship?
In an experiment, what is the variable that is deliberatly manipulated by the researcher?
What is the independent variable?