This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: There are two letters X and Y. If repetitions such as XX are permitted, how many two-letter ... (Read 168 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Jun 24, 2018
There are two letters X and Y. If repetitions such as XX are permitted, how many two-letter permutations are possible?
 
  A) 2
  B) 4
  C) 6
  D) 8

Question 2

Which of the following is an appropriate null hypothesis?
 
  A) H0 : x - y  0
  B) H0 : Px > Py
  C) H0 : x - y < 0
  D) H0 : 2x =2y


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

peilian

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

D


theo

  • Member
  • Posts: 698
Reply 2 on: Jun 24, 2018
Gracias!

phuda

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Why are some of the letters above the red line and some letters below? Why are some of the letters above the red line and some letters below?
Like most world-changing inventions, the printing press of fifteenth-century Europe took advantage o Like most world-changing inventions, the printing press of fifteenth-century Europe took advantage o
William Morris, Page from a specimen book with sample proof letters, Kelmscott Press. William Morris, Page from a specimen book with sample proof letters, Kelmscott Press.
The letters on the side of this injector on a Cummins 6.7 liter diesel indicate the calibration ... The letters on the side of this injector on a Cummins 6.7 liter diesel indicate the calibration ...
Business Letter Format and Example. Business Letter Format and Example.
Solve for the indicated letter Solve for the indicated letter
Video: Introduction to Dysrhythmia

For a complete list of videos, visit our video library