carow carow
  • 02-06-2018
  • Mathematics
contestada

Find the probability that 4 students chosen at random are all born on a Wednesday.
A) 1/28
B) 1/2401
C) 4/2401
D) 1/254

Respuesta :

jimthompson5910 jimthompson5910
  • 02-06-2018
Answer is choice B) 1/2401

The probability any individual is born on a Wednesday is 1/7.
There are four of these individuals, so we multiply out the fraction four times 
(1/7)*(1/7)*(1/7)*(1/7) = (1/7)^4 = (1^4)/(7^4) = 1/2401
Answer Link

Otras preguntas

How did the Battle of Gettysburg affect European governments?
In Prometheus Unbound, a golden age of beauty and peace is established because of obedience to authority.
Which part of the body acts as a levers?
Help ASAP math studyisland
Is the worship of only one god
sarah owns a book store. she is planning to stock some books by a famous author. but she has a tight budget, and she is not sure whether to stock all the previo
Area of a triangle 36 ft. By 41 1/2 ft.?
Two prominent brothers, ____, worked to bring reforms to the early Republic. a. Marius and Sulla c. Pompey and Crassus b. Tiberius and Gaius d. Antony and Marcu
When a raw, shell-less egg was placed in sugar solution, the egg shrank. The egg was brought back to its original size by placing it in water. Which process doe
what is a character sketch?