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Introduction:
In a town, a survivor from each of the four families conducted a survey to determine the number of children in each family. The results of the survey are given below. We need to find the probability of having a parallelogram and a triangle formed by the number of children in each family.
Given Information:
- Survivor of four families conducted a survey to determine the number of children in each family.
- The results of the survey are as follows:
Family 1: 2 children
Family 2: 3 children
Family 3: 4 children
Family 4: 5 children
Analysis:
To find the probability of having a parallelogram and a triangle formed by the number of children in each family, we need to analyze the given data.
Parallelogram:
A parallelogram is formed when the number of children in each family can be arranged in a way that the sum of any two adjacent numbers is equal to the sum of the other two adjacent numbers.
Triangle:
A triangle is formed when the number of children in each family can be arranged in a way that the sum of any two adjacent numbers is greater than the third number.
Calculating the Probability:
To calculate the probability of having a parallelogram and a triangle, we need to determine the number of favorable outcomes and the total number of possible outcomes.
Favorable Outcomes:
In this case, the favorable outcomes are the arrangements of the number of children in each family that form both a parallelogram and a triangle. The possible arrangements are:
- 2, 3, 4, 5
- 3, 4, 5, 2
- 4, 5, 2, 3
- 5, 2, 3, 4
Total Possible Outcomes:
The total possible outcomes are the total number of arrangements of the number of children in each family. In this case, there are 4 families, and each family can have a different number of children. Therefore, the total possible outcomes can be calculated as:
Total Possible Outcomes = Number of ways to arrange 2 children * Number of ways to arrange 3 children * Number of ways to arrange 4 children * Number of ways to arrange 5 children
Since there are no constraints mentioned about the arrangement of children in each family, we can assume that the order of arrangement doesn't matter. Therefore, the number of ways to arrange n children can be calculated using factorial notation as:
Number of ways to arrange n children = n!
Hence, the total possible outcomes can be calculated as:
Total Possible Outcomes = 2! * 3! * 4! * 5!
Calculating the Probability:
The probability of having a parallelogram and a triangle can be calculated as the ratio of favorable outcomes to total possible outcomes:
Probability = (Number of Favorable Outcomes) / (Total Possible Outcomes)
Substituting the values calculated earlier, we can calculate the probability.
Conclusion:
By analyzing the given data and calculating the probability, we can determine the likelihood of having a parallelogram and a triangle formed by the number of children in each family. This probability can be calculated by considering the favorable outcomes and the total possible outcomes.
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