Question

A seven-sided number cube with sides numbered 1, 2, 3, 4, 5, 6, 7 is rolled. What is the probability that a 4 or an odd number is rolled?

Answer 1

Hi,

5/7

Explanation:

odd side: 1,3,5,7 => 4 possibilities

p(x=4 or x is odd)=1/7+4/7=5/7