This is the concept of probability and statistics. We are required to find the probability of obtaining an odd number on the orange cube and a total of five.
Here we shall proceed as follows.
This is mutually independent occurrence.
Probability of selecting an odd number in the orange cube is:
3/6=1/2
The probability of obtaining a sum of 5 when the cubes are tossed will be:
For us to obtain a total of 5 the following combinations must be tossed;
(1,4),(4,1),(2,3),(3,2)
Probability of obtaining (1,4) or (4,1) or (2,3) or (3,2) will be:
1/6*1/6=1/36
Probability of obtaining this number will be:
1/36+1/36+1/36+1/36
=1/9
The probability of getting an odd number in the orange cube and a sum of 5 will be:
P(x)=1/9*1/2=1/18
<h2><u>
Boys and girls</u></h2>
<u></u>
As there are 3 boys and 2 girls in the group, only 1 game was played between a girl and a girl.
Since a group of friends played chess, and each person played exactly one game with each other in the group, and out of the total number of games played, 3 games were played between a boy and a boy, and 6 games were between a boy and a girl, to determine how many games were played between a girl and a girl, the following calculation must be performed:
- 2 players = 1 match
- 3 players = 3 games
- 6/3 = 2
Therefore, as there are 3 boys and 2 girls in the group, only 1 game was played between a girl and a girl.
Learn more about maths in brainly.com/question/10525625
The percent of decrease is 20% off
