Probability
A coin is flipped once, what is the probability of getting heads?
What is 1/2 or 50%
Researchers use this type of interval to estimate a population parameter.
What is a confidence interval?
What graph is best for showing changes over time?
What is a line graph?
The average of a data set is also called this.
What is Mean
A collection of facts, figures, or measurements is called?
What is Data
A standard die is rolled, what is the probability of rolling a number greater than 4?
What is 2/6 or 1/3
If a p-value is less than 0.05, statisticians typically do this to the null hypothesis.
What is reject the null hypothesis?
What graph uses bars to compare categories?
What is a bar graph?
The middle value in an ordered data set is called what?
What is Median
Data that describes qualities or categories, like colors or types of fruit, is called?
What is Categorical Data
A bag contains 3 red marbles and 2 blue marbles. One marbles is chosen, what is the probability of choosing a blue marbles?
What is 2/5
A sample mean is used to estimate this larger group value.
What is the population mean?
A scatter plot is mainly used to show what relationship between two variables?
What is correlation or association?
When certain groups are unfairly favored in data collection, this is called what?
What is Bias
When data is summarized using numbers like mean, median, or standard deviation, it is called?
What is Descriptive Statistics
Two coins are flipped, what is the probability both land on heads?
What is 1/4
A poll reports 52% ± 3%, the "± 3%” is known as?
What is the margin of error?
What type of graph is best for comparing two variables to see if they are related?
What is Scatter Plot
A statistic describing how spread out data values are from the mean is called what?
What is Standard Deviation
Data that can take any value within a range is called?
What is Continuous Data
A class has 8 boys and 12 girls. One student is selected randomly, what is the probability the student is a girl?
What is 12/20 or 3/5
A test that compares observed results to assumptions made before testing begins.
What is the null hypothesis?
A plot showing the spread and outliers of a dataset using quartiles is called?
What is Box Plot
If results are unlikely to happen by random chance alone, they are considered what?
What is Statistically Significant
Data that can be counted and takes on integer values is called?
What is Discrete Data