AP BIOLOGY

HEREDITY

BASICS OF PROBABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Rolling two dice once. What is the probability that the sum is 7?
A
1/6
B
2/5
C
1/8
D
2/7
Explanation: 

Detailed explanation-1: -∴ The probability of getting sum as 7 when two dice are thrown is 1/6.

Detailed explanation-2: -Thus the sum is a 7 in 6 of the 36 outcomes and hence the probability of rolling a 7 is 6/36 = 1/6.

Detailed explanation-3: -There are 36 possible ways two dice can roll, so the probability of the sum of seven is 6 out of 36, or 1/6.

Detailed explanation-4: -2 Answers. The probability is 25% .

There is 1 question to complete.