Tuesday

September 2, 2014

September 2, 2014

Posted by **Lucy** on Saturday, January 3, 2009 at 12:03pm.

My answer: is 1/3 because there are only two numbers that are even and greater than 3 on the number cube.

Teacher marked this as wrong. How did I mess this one up?

- Pre-cal -
**Reiny**, Saturday, January 3, 2009 at 12:19pmthis sure looks like a "conditional" probability.

in general

P(A│B) = P(A AND B)/P(B)

read: P(A│B) as "the prob of A given B"

so let A be (even number)

let B be (greater or equal to 3)

so P(A and B) = 2/6 = 1/3

P(B) = 4/6 = 2/3

so P(A│B) = (1/3)/(2/3) = 1/2

**Answer this Question**

**Related Questions**

pre algebra - Tell whether the events are independent or dependent. Then find ...

pre algebra - Tell whether the events are independent or dependent. Then find ...

college algebra: probability and statistics - You roll a single die once. What ...

Pre-Alegebra - You spin a spinner that is divided into 6 equals parts once and ...

Math - You toss tails and roll an even number ( when you toss a coin and roll a ...

math - You roll a number cube numbered from 1 to 6. what is the probability you ...

statistics - The below table shows the probabilities generated by rolling one ...

math - An experiment consists of rolling a weighted die. The probability of ...

math - A fair number cube is rolled twice. W aht is the probbability that the ...

charle drew high - a number cube is rolled twice. what is the probability of ...