lyza04
contestada

Twenty nine cards are numbered from 1 to 29 and placed in a box. One card is selected at random and
not replaced. Another card is randomly selected. What is the probability of selecting two even numbers?

Respuesta :

Answer:The probability of selecting two even numbers is [tex]\dfrac{13}{58}[/tex] .

Step-by-step explanation:

Given , 29 cards are numbered from 1 to 29 and placed in a box.

Number of even number cards = 2,4,6,8,..., 28= 14

Number of odd number cards = 29-14=15

The probability of selecting 2 even number cards = [tex]\dfrac{^{14}C_2}{^{29}C_2}[/tex]

[tex]=\dfrac{\dfrac{14!}{2!12!}}{\dfrac{29!}{2!27!}}\\\\=\dfrac{14\times13}{29\times28}\\\\=\dfrac{13}{58}[/tex]

Hence, the probability of selecting two even numbers is [tex]\dfrac{13}{58}[/tex] .