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Vladimir [108]
2 years ago
8

Classify the following as cross-section or time-series data: Gross sales of 200 ice cream parlors in July 2009

Computers and Technology
1 answer:
faust18 [17]2 years ago
6 0

Answer:

let us start by stating the definitions of Time series data and Cross sectional data. TIME SERIES DATA: The data which is collected chronologically over time is known as time series data.

Explanation:

Btw brainliest me plss

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Consider two different implementations, M1 and M2, of the same instruction set. There are three classes of instructions (A, B, a
Margaret [11]

Explanation:

A.)

we have two machines M1 and M2

cpi stands for clocks per instruction.

to get cpi for machine 1:

= we multiply frequencies with their corresponding M1 cycles and add everything up

50/100 x 1 = 0.5

20/100 x 2 = 0.4

30/100 x 3 = 0.9

CPI for M1 = 0.5 + 0.4 + 0.9 = 1.8

We find CPI for machine 2

we use the same formula we used for 1 above

50/100 x 2 = 1

20/100 x 3 = 0.6

30/100 x 4 = 1.2

CPI for m2 =  1 + 0.6 + 1.2 = 2.8

B.)

CPU execution time for m1 and m2

this is calculated by using the formula;

I * CPI/clock cycle time

execution time for A:

= I * 1.8/60X10⁶

= I x 30 nsec

execution time b:

I x 2.8/80x10⁶

= I x 35 nsec

6 0
2 years ago
Binary numbers are based on __________.
Lena [83]
D. Two digits (1s and 0s
8 0
3 years ago
Read 2 more answers
The ArrayList class contains a trim method that resizes the internal array to exactly the capacity. The trim method is intended
andreev551 [17]

Answer:

public void trimToSize() {

modCount++;

if (size < elementData.length) {

elementData = (size == 0)

? EMPTY_ELEMENTDATA

: Arrays.copyOf(elementData, size);

}

}

Now, the running time for copyOf() function is O(N) where N is the size/capacity of the ArrayList. Hence, the time complexity of trimToSize() function is O(N).

Hence, the running time of building an N-item ArrayList is O(N^2).

Please find the sample code below.

CODE

==================

import java.util.ArrayList;

public class Driver {

  public static void main(String[] args) throws Exception{

      int N = 100000;

      ArrayList<Integer> arr = new ArrayList<>(N);

     

      long startTime = System.currentTimeMillis();

      for(int i=0; i<N; i++) {

          arr.add(i);

          arr.trimToSize();

      }

      long endTime = System.currentTimeMillis();

      double time = (endTime - startTime)/1000;

      System.out.println("Total time taken = " + time + " seconds.");

  }

}

Explanation:

5 0
3 years ago
A file that is 242 megabytes is being downloaded. if the download is 15.4% complete, how many megabytes have been downloaded? ro
Lunna [17]
37.26 megabytes have been downloaded
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Why was packet-switching an advancement over previous forms of networking?
Elina [12.6K]

The answer should be B tell me if I'm wrong.


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