Question

In: Statistics and Probability

Howard is picking out some movies to rent, and he is primarily interested in documentaries and...

Howard is picking out some movies to rent, and he is primarily interested in documentaries and children's movies. He has narrowed down his selections to 8 documentaries and 9 children's movies. Step 2 of 2 : How many different combinations of 3 movies can he rent if he wants at least two children's movies?

Solutions

Expert Solution

Number of different combinations with at least 2 children's movies = number of combinations with 2 children's movies + number of combinations with 3 children's movies

                                                            = 9C2 * 8C1 + 9C3

                                                            = 36 * 8 + 84

                                                            = 372 (ans)

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Howard is picking out some movies to rent, and he is primarily interested in documentaries and...
Howard is picking out some movies to rent, and he is primarily interested in documentaries and children's movies. He has narrowed down his selections to 8 documentaries and 9 children's movies. Step 2 of 2 : How many different combinations of 3 movies can he rent if he wants at least two children's movies?
Nadia is picking out some movies to rent, and she is primarily interested in comedies and...
Nadia is picking out some movies to rent, and she is primarily interested in comedies and mysteries. She has narrowed down her selections to 1919 comedies and 88 mysteries. Step 2 of 2 :   How many different combinations of 44 movies can she rent if she wants at least one comedy?
he managers of a brokerage firm are interested in finding out if the number of new...
he managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the firm affects the sales generated by the broker. For the last year, the managers sampled 16 brokers and determined the number of new clients they enrolled during that year and their sales amounts in millions of dollars for that year. This data is presented in the table that follows. In your answers, sales should be left as a...
Jeremy wants to know if some scary movies are more frightening than others. He takes a...
Jeremy wants to know if some scary movies are more frightening than others. He takes a group of students and randomly assigns them to watch one of three popular scary movies (Jaws, Alien, or Psycho), and counts the number of times each person screams during the movie. Is there a significant difference in the number of screams when comparing these movies? Set α = .05. Jaws Alien Psycho ∑▒〖X_1=〗 103 ∑▒〖X_2=〗 149 ∑▒〖X_3=〗 79 ∑▒〖X_1^2=〗 1162 ∑▒〖X_2^2=〗 2178 ∑▒〖X_3^2=〗 569...
Jeremy wants to know if some scary movies are more frightening than others. He takes a...
Jeremy wants to know if some scary movies are more frightening than others. He takes a group of students and randomly assigns them to watch one of three popular scary movies (Jaws, Alien, or Psycho), and counts the number of times each person screams during the movie. Is there a significant difference in the number of screams when comparing these movies? Set α = .05.             Jaws Alien              Psycho X1= 103 X2= 149 X3= 79 X12= 1162 X22= 2178...
A friend of yours is interested in a career in coding. He has some health care...
A friend of yours is interested in a career in coding. He has some health care experience working as a medical office assistant at a local orthopedist clinic. He also has an associate’s degree in computer sciences and needs to make a career change. He looks to you, a successful coding student, for advice. 1. What would you tell your friend about coding? 2. What information would you give him to help him decide if this profession is for him?...
Peter got a 8-year assignment in Argentina. Consequently, he will rent out his three-bedroom house in...
Peter got a 8-year assignment in Argentina. Consequently, he will rent out his three-bedroom house in Hancock to an old friend, and given their friendship, Peter only requires end of the year payments (thus no monthly pmts) to be deposited in a savings account created solely for this purpose. Rental income will be 18774 dollars per year but maintenance/repair costs will be 758 dollars in the first year and thereafter increase by 289 dollars per year. The tenant will be...
John is interested in tax planning and saving for his children’s education. He needs some further...
John is interested in tax planning and saving for his children’s education. He needs some further information on the topics below: He has several long- and short-term investments that he would like to sell to put his children through college, and he does not know the tax consequences associated with them if he sells. He is considering taking a second mortgage or home equity loan on the house in order to increase funds available for his children's tuition. He would...
Walt is a wealthy businessman from out west. He wants to buy some property in Florida, but he's concerned that if the seller, Donald, knows that he's the buyer, the seller will insist on a higher price
Walt is a wealthy businessman from out west. He wants to buy some property in Florida, but he's concerned that if the seller, Donald, knows that he's the buyer, the seller will insist on a higher price. So he sends his agent, Mickey, to Florida to buy the property (you may assume that Mickey has full agency authority). He instructs Mickey not to tell Donald that he is acting as an agent for Walt. In fact, to be safe, he...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT