mathamaticlly
25.01.2021 •
Mathematics
Solve the system of equations x + y = 4 and -9x + 7y = -84 by combining the equations.
Solved
Show answers
More tips
- B Business and Finance How to Open an Online Store? A Detailed Guide for Beginners...
- L Leisure and Entertainment What can be considered an antique: defining and valuing old objects...
- L Leisure and Entertainment Choosing the Right Books to Read: Tips and Recommendations...
- C Computers and Internet Step-by-Step Guide on How to Download Music to Your iPhone...
- H Health and Medicine Naskol ko Opasen Ukus Kleshcha i Kak Ego Raspoznat...
- F Family and Home How to Choose Suitable Windows for Your Home?...
- L Leisure and Entertainment What Movies You Should Watch: A Guideline to Make the Right Decision...
- L Leisure and Entertainment How to Identify a Song? Which Program Can Recognize a Song by Its Melody?...
- H Health and Medicine Coughing: Causes, Types, and Treatment Methods...
- F Family and Home Parquet or laminate, which is better?...
Answers on questions: Mathematics
- M Mathematics the width of a rectangle is 2 feet more than twice its length. if the area of the rectangle is 112 square feet then the length and width...
- M Mathematics What value of x makes the equation 3(x−6)−8x=−2+5(2x+1) true?...
- M Mathematics What is the domain of the function y=2VX-6? 0 35X 6...
- M Mathematics If a ladder is leaned against a building. the bottom of the ladder is 9 feet from the building. the top of the ladder is 16 feet above the ground. what is the slope of...
- M Mathematics At a concert the ratio of adults to young people under 17 years old was 3 to 2 if the total number in attendance was 1620 how many adults attended the concert...
- B Business The art director for a television commercial creates the to present the artistic approach, the action sequences, and the style of the commercial....
- H Health Healthcare employees tend to have more stress involved with their employment. eustress is a positive way that stress is relieved, and can lead to more productive activities....
Ответ:
The events are independent. They are not related at all. This is because you put the card back in, keeping the total number of cards the same. If you did not put the card back, then the second draw (selecting the queen) would be dependent on the first event (selecting the king)
The probability of picking a king is 4/52 = 1/13
If you do not put the card back, then there are 52-1 = 51 cards left and 4 queens, so 4/51 is the probability of getting a queen. Again, this is assuming you do not put the first card back. Putting that first card back would make the queen's probability 4/52 = 1/13, which is the same as selecting that king.