You and you The Kentucky Derby. There are 13 horses in the race. How many ways c
ID: 3375008 • Letter: Y
Question
You and you The Kentucky Derby. There are 13 horses in the race. How many ways can the horses come in first, second, or third? Steps for Calculation: Q1: Q2: Q3: 04: Is this an example of a combination or a permutation? What is N? (2 What is r? What is the calculated value for this example QA: N-r Th owing 4 question the following in You have 18 friends that you want to invite to dinner. However, your dining room table only seats 6 people. Since, you will take up one seat, you can only have five friends at one time. How many different groups of guests can you have? Steps for Calculation: Is this an example of a combination or a permutation? Comor 6: What is N?15 7: What is r?5 Q8: What is the calculated value for this example? 31 2705726005 re or-as U 1 956 Th fllaming 2 qustions(09 to 010 1224 000 Q9: With a permutation ‘order matters, Q10: 5! is equal to 120. Q11: Which one of the following is NOT one of the major uses of the CPI? A. The CPI is used to evaluate and determine economic policy. B. The CPI is used to compare prices in different years. The CPI is used to determine salary and price adjustments. l of the above three answers are major uses of the CPI.Explanation / Answer
Answer
Q1) This is an example of permutation because there is specific order for arranging the horses in the race to come in at first, second or third place
Q2) N is the total number which equal to 13
Q3) r is the number of selections, so we have to select first, second and third. This means we have to select only 3 horses at a time, so we have r = 3
Q4) Number of ways for horses to come in first, second and third place is
P(13,3) = 13!/{13-3}! = 13!/10! = (13*12*11*10!)/10!
Here 10! Will be cancelled out from numerator and denominator
So, we get
P(13,3) = 13*12*11 = 1716
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.