Scofield45 Scofield45
  • 02-08-2014
  • Mathematics
contestada

you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that both cards will be 9s?

Respuesta :

Pulkit
Pulkit Pulkit
  • 02-08-2014
Prob of picking 9 in 1st turn = 4 / 52

Prob of picking 9 is 2nd turn = 3/51

So Probability for both = 4 * 3 / (52*51)
=1/221
Answer Link

Otras preguntas

math hates me and i hate ot
Simplify each each expression. If not possible, write simplified. The bottom questions: rewrite each expression using the distributive property then simplify
If mutation happen in the ___, it could affect offspring
If 1 is added to a number and the sum is tripled, the result is 15 more than the number.find the number
anybody help??????????
I just need one and 2
The school district is interested in knowing if the students and parents are supportive of a longer school day. The school conducts a poll of students and par
A high school graduating class is made up of 472 students. There are 116 more girls than boys. How many boys are in the​ class?
What does the author suggest would fill the emptiness of blank space?
What rumor is spreading about surrounding villages and the lottery?