12 males under the age of 21.
10 females under the age of 21.
8 males aged between 21 and 30.
7 females aged between 21 and 30.
9 males over the age of 30.
6 females over the age of 30.
Calculate the probability that, if one person is selected at random from the group this person will be female:
To find the probability of selecting a female from the group, we need to calculate the ratio of the number of females to the total number of people in the group.
The number of females under the age of 21 is 10.
The number of females aged between 21 and 30 is 7.
The number of females over the age of 30 is 6.
Total number of females = 10 + 7 + 6 = 23
Now, let's calculate the total number of people in the group:
The number of males under the age of 21 is 12.
The number of males aged between 21 and 30 is 8.
The number of males over the age of 30 is 9.
Total number of males = 12 + 8 + 9 = 29
Total number of people in the group = Total number of males + Total number of females = 29 + 23 = 52
Probability of selecting a female = Number of females / Total number of people
= 23 / 52
= 0.4423 (rounded to four decimal places)
Therefore, the probability that if one person is selected at random from the group, this person will be female is approximately 0.4423.
To calculate the probability that a randomly selected person is female, we need to determine the total number of females in the group and divide it by the total number of people in the group.
Total number of females = 10 females under the age of 21 + 7 females aged between 21 and 30 + 6 females over the age of 30
Total number of females = 10 + 7 + 6 = 23 females
Total number of people = 12 males under the age of 21 + 10 females under the age of 21 + 8 males aged between 21 and 30 + 7 females aged between 21 and 30 + 9 males over the age of 30 + 6 females over the age of 30
Total number of people = 12 + 10 + 8 + 7 + 9 + 6 = 52 people
Now, we can calculate the probability:
Probability of selecting a female = Number of females / Total number of people
Probability of selecting a female = 23 / 52
Probability of selecting a female ≈ 0.4423 (rounded to 4 decimal places)
Therefore, the probability that, if one person is selected at random from the group, the selected person will be female is approximately 0.4423 or 44.23%.
To calculate the probability that a person selected at random from this group will be female, we need to know the total number of females in the group and the total number of people in the group. Let's add up the number of females in each age category:
10 females under the age of 21 +
7 females aged between 21 and 30 +
6 females over the age of 30 = 23 females
Next, let's find the total number of people in the group by adding up the number of males and females in each age category:
12 males under the age of 21 +
10 females under the age of 21 +
8 males aged between 21 and 30 +
7 females aged between 21 and 30 +
9 males over the age of 30 +
6 females over the age of 30 = 52 people
Now we can calculate the probability that a person selected at random will be female by dividing the number of females by the total number of people:
Probability = Number of females / Total number of people
Probability = 23 / 52
Simplifying the fraction, we get:
Probability = 0.4423 (rounded to four decimal places)
So, the probability that a person selected at random from this group will be female is approximately 0.4423, or 44.23%.