State if each scenario involves a permutation or a combination. Then find the number of possibilities. 5) Castel and Joe are planning trips to three countries this year. There are 7 countries they would like to visit. One trip will be one week long, another two days, and the other two weeks. 6) There are 110 people at a meeting. They each shake hands with everyone else. How many handshakes were there?

Q: W 4. A cell phone company claims that the average time a person spends on their phone is 12.8 hours…

A: Let μ denote the population mean and x⎯⎯ denotes the sample mean. Then, μ=12.8 and x⎯⎯=12.2 Let n be…

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Q: Part (d) please

A: Please find the detailed answer in the next step. From the prev answer we have only (b) (i) is a…

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Q: how to do this

A: Given, f(x)=13x-1andg(x)=-f(x)+9   To find rule for g

Q: Please help

A: Step 1:For a triathlete as well as it was loosely more expedient to aim for a balanced level of…