marioyanezxtvp9486 marioyanezxtvp9486
  • 25-12-2017
  • Mathematics
contestada

Suppose you have a group of 8 male and 4 female volunteers. how many ways are there to choose 6 of these volunteers for a treatment group?

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 01-01-2018
Since volunteers can be of any sexe (no precision given in your problem), then we can consider the question as  how many group of 6 we can make with 12 persons:
It's a combination of 6 chosen among 12

¹²C₆ = (12!)/(6!).(12-6!)

²C₆ = (12!)/(6!).(6!)

¹²C₆ = 924 Ways

Answer Link

Otras preguntas

Multiplying a number by 2 and then adding 5 gives the same number as subtracting a number from 23. What is the number?
Geometry  The diagonals of a  kite are in the ratio of 3:2. The area of the kite is 27 cm^2 .  Find the length of both diagonals. (Hint: Let the lengths of the
where does england get its natural resources
Find the 40th term of this arithmetic sequence.
A small child has a wagon with a mass of 10 kilograms. The child pulls on the wagon with a force of 2 newtons. What is the acceleration of the wagon?
who was not free in medieval England
Comflict between Ralph and Jack quotes ?
A test tube containing CaCO₃ is heated until the entire compound decomposes. If the test tube plus calcium carbonate originally weighed 30.08 grams and the loss
Maria is tossing a fair coin. She tosses the coin ten times and it lands on heads eight times. If Maria tosses the coin an eleventh time, what is the probabilit
You deposit $6,700 in a money-market account that pays an annual interest rate of 3.3%. The interest is compounded quarterly. How much money will you have after