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Recent questions in Statistics

1 1 vote
1 1 answer
730
730 views
Sample question of permutation and combination.
You can bring along 2 friends! you have 5 friends who want to come along. How many different groups of friends could you take with you?
1 1 vote
1 1 answer
976
976 views
{1.75, 1.63, 1.55, 1.92, 1.81, 1.79, 1.81}. Determine the mean, the median, and the 20th percentile?
1 1 vote
1 1 answer
1.3k
1.3k views
What is difference between discrete numerical variable and continuous numerical variable?
2 2 votes
1 1 answer
807
807 views
What is the mean and standard deviation of a standard normal distribution?
3 3 votes
1 answers 1 answer
575
575 views
Find the expected value of X from the probability table.
Find the expected value of X from the probability table. X 12 3 P(X) 0.3 0.80.4
3 3 votes
1 1 answer
5.3k
5.3k views
How many unique ways are there to arrange the letters in the word PRIOR?
2 2 votes
1 answers 1 answer
588
588 views
If a die is rolled, find the probability of rolling an even number
1 1 vote
1 answers 1 answer
1.2k
1.2k views
What is the difference between Descriptive Statistics and Inferential Statistics?
2 2 votes
1 answers 1 answer
779
779 views
What is the Empirical Rule?
3 3 votes
1 answers 1 answer
513
513 views
A gambling machine accepts 5 dollars and generates a random dollar value (x) between 1 and 10.
A gambling machine accepts 5 dollars and generates a random dollar value (x) between 1 and 10.What is the distribution of x?What is the expected value of x?Is it smart to...
2 2 votes
1 answers 1 answer
999
999 views
What is the difference between joint and conditional probability?
2 2 votes
1 answers 1 answer
601
601 views
Two coins are flipped. What is the probability of getting heads twice?
1 1 vote
0 0 answers
413
413 views
What is the difference between Combination and Permutation?
As an example:Calculate the possible permutations for a rubik's cube?Why is it not, calculate the possible combinations for a rubik's cube?
2 2 votes
1 1 answer
914
914 views
Six devices (A,B,C,D,E, F) are each assigned one of three IP addresses...how many different assignments are possible?
Six devices (A,B,C,D,E, F) are each assigned one of three IP addresses (IP#1, IP#2, IP#3). If threedevices are assigned IP#1, two devices are assigned IP#2, and one devic...
2 2 votes
1 1 answer
3.8k
3.8k views
How many different ways are there to deal four 13 card hands to four players from a standard deck of 52 cards?
This question is from the third Combination example from lecture notes 3A. Researching this question I found this answerhttps://www.quora.com/In-how-many-ways-can-52-card...
1 1 vote
1 answers 1 answer
1.6k
1.6k views
What is the difference between the mean and the median? Calculate both for the following number set {18, 24, 19. 16. 21}
2 2 votes
1 answers 1 answer
708
708 views
What is the difference between qualitative and quantitive data?
2 2 votes
1 answers 1 answer
2.1k
2.1k views
A standard deck of 52 cards is shuffled and a single card is drawn. What is the probability that this card is a Joker
This is question 1d in the 2B exercises. The answer says the probability is 0 but I count 4 jokers in a 52 card deck, which means the probability is 1/13. Think I misunde...
1 1 vote
1 1 answer
1.1k
1.1k views
What is the difference between a bar plot and a histogram?
1 1 vote
2 2 answers
2.3k
2.3k views
How to calculate the percentiles in statistics?
I have these series of numbers and I am wondering each one is how much percentile and also how to calculate a custom percentile such as 60th percentile? [1, 3, 5, 7, 9, 9...
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