What is the definition of probability?
Probability is a measure of the likelihood that an event will occur.
True or False: The probability of an event ranges from 0 to 1.
True
Fill in the blank: The formula for calculating the probability of an event is _____.
Number of favorable outcomes / Total number of outcomes
What is a frequency table?
A frequency table is a table that displays the frequency of various outcomes in a dataset.
What does the term ‘outcome’ refer to in probability?
An outcome is a possible result of a probability experiment.
What is the total probability of all possible outcomes?
1
True or False: The sum of probabilities of all outcomes in a sample space is 100%.
True
What is the formula for calculating relative frequency?
Relative frequency = Frequency of a specific outcome / Total frequency
Multiple Choice: Which of the following is NOT a type of data? A) Qualitative B) Quantitative C) Subjective D) Discrete
C) Subjective
What is the difference between discrete and continuous data?
Discrete data can take specific values, while continuous data can take any value within a range.
Fill in the blank: In a probability experiment, the collection of all possible outcomes is called the _____.
Sample space
What is the mode in a data set?
The mode is the value that appears most frequently in a data set.
True or False: The median is the average of all data points.
False
What is the median in a sorted data set?
The median is the middle value when the data points are arranged in order.
Multiple Choice: What type of graph is best for displaying frequency distributions? A) Bar chart B) Line graph C) Pie chart D) Histogram
D) Histogram
What is a random sample?
A random sample is a subset of a population chosen in such a way that every member has an equal chance of being selected.
Fill in the blank: A graph that shows the relationship between two variables is called a _____.
Scatter plot
What does the term ‘bimodal’ refer to in statistics?
Bimodal refers to a data set that has two modes.
True or False: A larger sample size generally leads to more reliable results in statistics.
True
What is the range of a data set?
The range is the difference between the maximum and minimum values in the data set.
Multiple Choice: Which measure of central tendency is affected by extreme values? A) Mean B) Median C) Mode D) None of the above
A) Mean
What is a box plot used for?
A box plot is used to display the distribution of a data set based on a five-number summary.
Fill in the blank: The five-number summary includes the minimum, first quartile, median, third quartile, and _____.
Maximum
What is the purpose of conducting a survey in data collection?
The purpose is to gather information from a sample of individuals to draw conclusions about a larger population.
