Statistics & Probability
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Data Collection and Representation
Data Collection and Representation - Applications
Data Collection and Representation - Case Studies
Data Collection and Representation - Problem Set
Measures of Central Tendency (Mean, Median, Mode)
Measures of Central Tendency (Mean, Median, Mode) - Applications
Measures of Central Tendency (Mean, Median, Mode) - Case Studies
Permutations and Combinations Basics
Probability - Basic Concepts
Q. If the mean of a data set is 30 and the total number of observations is 10, what is the total sum of the observations?
Q. If the mean of a data set is 50 and the standard deviation is 5, what is the z-score of a value 60?
Q. If the probability of an event is 0.2, what is the probability of the event not occurring?
Q. If the probability of an event occurring is 0.2, what is the probability of it not occurring?
Q. If two events A and B are independent, what is the probability of both A and B occurring?
Q. If you flip a fair coin three times, what is the probability of getting exactly two heads?
Q. If you have 4 different shirts and 3 different pairs of pants, how many different outfits can you create?
Q. If you have 4 different shirts and 3 different pants, how many outfits can you create?
Q. If you have 5 different books and want to select 2 to read, how many combinations are possible?
Q. If you have 6 different books and want to select 2 to read, how many combinations can you make?
Q. In a class, the grades are: 88, 92, 76, 85, 90. What is the mode?
Q. In a class, the scores of 10 students are: 85, 90, 75, 80, 95, 70, 80, 85, 90, 100. What is the mean score?
Q. In a data set of 7, 8, 9, 10, 10, 10, 11, what is the mode?
Q. In a data set, if the mean is 50 and the standard deviation is 5, what is the z-score of a value 60?
Q. In a data set, the mode is 7. What does this indicate?
Q. In a data set, the mode is defined as what?
Q. In a data set, the mode is defined as which of the following?
Q. In a dataset of test scores: 70, 75, 80, 85, 90, what is the mean score?
Q. In a dataset of the ages of five siblings: 10, 12, 14, 16, and 18, what is the mean age?
Q. In a dataset of the following weights (in kg): 60, 70, 80, 90, 100, what is the median weight?
Q. In a dataset: 10, 20, 30, 40, 50, what is the median?
Q. In a dataset: 4, 4, 4, 5, 6, 7, what is the median?
Q. In a normal distribution, what percentage of data falls within one standard deviation of the mean?
Q. In a survey, the ages of participants are: 22, 25, 25, 30, 35. What is the mean age?
Q. In a survey, the number of pets owned by 6 families is: 1, 2, 2, 3, 4, 4. What is the mode?
Q. In how many different ways can you arrange 3 red balls and 2 blue balls?
Q. In how many ways can you choose 2 fruits from a selection of 5 different fruits?
Q. In how many ways can you choose 3 fruits from a basket of 10 different fruits?
Q. In how many ways can you choose 4 toppings from a list of 10?
Q. In the data set 10, 12, 10, 14, 16, what is the mode?
