Given a data set x, the following R commands have been run: library(cluster); agnes (x=X)->AG; K<-2; pam(x=X, k=K)->PM Match the following objects with what you expect the R output to be. PM$id.med Choose... PM$clustering Choose... AG$order Choose... AG$ac Choose... AG$height Choose... [1] 1, 1, 2, 1, 1, 1, 2 [1] 1, 5, 6, 7, 2, 3, 4 [1] 6, 7 [1] 0.1517008 [1] 4, 4, 4, 4.7948, 4.4721, 4
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- def upgrade_stations(threshold: int, num_bikes: int, stations: List["Station"]) -> int: """Modify each station in stations that has a capacity that is less than threshold by adding num_bikes to the capacity and bikes available counts. Modify each station at most once. Return the total number of bikes that were added to the bike share network. Precondition: num_bikes >= 0Estimated Completion Time: 2-3 minutes Which of the following situations will lead to an object being aliased? Select all that apply. n Assigning a list to L1, then assigning L1 to L2 n Assigning a string to S1, then assigning the result of slicing S1 (i.e. S1[:]) to S2 n Assigning a list to L1, then assigning the result of a copy() method on L1 to L2 n Assigning a list to L1, then assigning the result of slicing L1 (i.e., L1[:]) to L2 n Assigning a string to S1, then assigning the result of a replace() method on S1 to S2 n Assigning a list to L1, then using L1 in a function call with header "def foo(x: List) -> List" n Assigning a string to S1, then using S1 in a function call with header "def foo(x: str) -> None" n Assigning two lists to L1 and L2, then assigning the result of adding them to L3Description: In this project, you are required to make a java code to build a blockchain including multiple blocks. In each block, it contains a list of transactions, previous hash - the digital signature of the previous block, and the hash of the current block which is based on the list of transactions and the previous hash. If anyone would change anything with the previous block, the digital signature of the current block will change. When this changes, the digital signature of the next block will change. Detailed Requirements: 1. Define your block class which contains three private members and four public methods. a. Members: previousHash (int), transactions (String[]), and blockHash (int); b. Methods: i. Block( int previousHash, String[] transactions){} ii. getPreviousHash(){} iii. getTransaction(){} iv. getBlockHash(){} 2. Using ArrayList to design your Blockchain. 3. Your blockchain must contain genesis block and make it to be the first block. 4. You can add a block to the end of…