a teaher chooses a student at random from a class of 10 boys and 15 girls. Find the odds favor of and for the odds against each event.
1. choosing a girl
2. choosing a boy
i don't understand odds of something please help.........
Odds are the same as probability.
The probability of a single event is what you want to happen over all possibilities.
All possibilities = total number of students 10+15=25
Odds of choosing a girl 15/25=3/5
Odds of choosing a boy 10/25=2/5
One eighth of the children in a have brown eyes.if 6 children have brown eyes,how many children are there in the club
To understand odds, you need to compare the number of favorable outcomes to the number of unfavorable outcomes. The odds in favor of an event represent the ratio of favorable outcomes to unfavorable outcomes, while the odds against an event represent the ratio of unfavorable outcomes to favorable outcomes.
Let's calculate the odds for each event:
1. Choosing a girl:
The number of favorable outcomes is 15 (the total number of girls in the class), and the number of unfavorable outcomes is 10 (the number of boys in the class). Therefore, the odds in favor of choosing a girl can be expressed as 15:10, or 3:2. This means there are 3 favorable outcomes for every 2 unfavorable outcomes.
To convert these odds to a probability, you can add the odds together (3+2=5) and divide each individual value by the total (3/5, 2/5). This means there is a 3/5 or 60% chance of choosing a girl and a 2/5 or 40% chance of not choosing a girl.
2. Choosing a boy:
The number of favorable outcomes is 10 (the total number of boys in the class), and the number of unfavorable outcomes is 15 (the number of girls in the class). Therefore, the odds in favor of choosing a boy can be expressed as 10:15, or 2:3. This means there are 2 favorable outcomes for every 3 unfavorable outcomes.
Similarly, to convert these odds to a probability, you can add the odds together (2+3=5) and divide each individual value by the total (2/5, 3/5). This means there is a 2/5 or 40% chance of choosing a boy and a 3/5 or 60% chance of not choosing a boy.
So, the odds in favor of choosing a girl are 3:2, while the odds in favor of choosing a boy are 2:3.