prissa05 prissa05

27-06-2016
Mathematics

contestada

An apartment building has 20 two-bedroom apartments and 8 three-bedroom apartments. If 4 apartments are chosen at random to be redecorated, what are the probabilities a) All will be two-bedroom apartments

Respuesta :

carrah13 carrah13

27-06-2016

the answer is 4 of 28. i think so

Answer Link

27-06-2016

a) This is sampling without replacement.
[tex]P(all\ 2\ bedroom)=\frac{20C4}{28C4}=\frac{20\times19\times18\times17}{28\times27\times26\times25}[/tex]

Answer Link

Otras preguntas

what is the mixed number that is equivalent to 4.27

An art museum had 275,760 visitors last year. The museum was open every day of the year except for 5 holidays. How many visitors did the museum have each day, o

A temporary committee consisting of members of both houses with the responsibility of creating agreement on different versions of the same bill is referred to a

A series of legislative acts passed under the Grant administration in 1870 and 1871 authorized federal protection for black suffrage through the use of the Army

To test the hypothesis that plants grow faster in green light, a student set up 3 of the same type of plants. She placed the first plant under a green light, th

Elizabeth and Mini are playing a factor game. Elizabeth told Mimi that she was thinking of a mystery number that had 2, 7, and 9 as factors. she said there were

What is 2.54 as a mixed number? What is 3.750 as a mixed number?

What is the name for any country that provides extensive social services at little or no direct cost to consumers? A. a welfare state B. a socialist state C. a

What part did advances in technology play in the creation of the 'New Woman'? What group of women was largely excluded from this progress?

if you add 5 to me and then divide by 9, you get 3. what number am I?