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Sagot :
To determine the median of the given probability distribution, we'll follow these steps:
1. List the tickets and their corresponding probabilities:
[tex]\[ \begin{array}{c|c} \text{Number of Tickets (X)} & \text{Probability} \\ \hline 1 & 0.29 \\ 2 & 0.44 \\ 3 & 0.19 \\ 4 & 0.06 \\ 5 & 0.02 \\ \end{array} \][/tex]
2. Find the cumulative distribution:
Compute the cumulative probabilities by adding the probabilities sequentially:
[tex]\[ \begin{array}{c|c|c} \text{Number of Tickets (X)} & \text{Probability} & \text{Cumulative Probability} \\ \hline 1 & 0.29 & 0.29 \\ 2 & 0.44 & 0.29 + 0.44 = 0.73 \\ 3 & 0.19 & 0.73 + 0.19 = 0.92 \\ 4 & 0.06 & 0.92 + 0.06 = 0.98 \\ 5 & 0.02 & 0.98 + 0.02 = 1.00 \\ \end{array} \][/tex]
This gives us the cumulative distribution:
[tex]\[ [0.29, 0.73, 0.92, 0.98, 1.00] \][/tex]
3. Determine the median:
The median is the point at which the cumulative probability reaches or exceeds 0.5. From the cumulative distribution:
[tex]\[ \begin{array}{c|c} \text{Number of Tickets (X)} & \text{Cumulative Probability} \\ \hline 1 & 0.29 \\ 2 & 0.73 \\ 3 & 0.92 \\ 4 & 0.98 \\ 5 & 1.0 \\ \end{array} \][/tex]
We see that at [tex]\(X = 2\)[/tex], the cumulative probability is 0.73, which is the first value greater than or equal to 0.5.
Therefore, the median of the distribution is 2.
1. List the tickets and their corresponding probabilities:
[tex]\[ \begin{array}{c|c} \text{Number of Tickets (X)} & \text{Probability} \\ \hline 1 & 0.29 \\ 2 & 0.44 \\ 3 & 0.19 \\ 4 & 0.06 \\ 5 & 0.02 \\ \end{array} \][/tex]
2. Find the cumulative distribution:
Compute the cumulative probabilities by adding the probabilities sequentially:
[tex]\[ \begin{array}{c|c|c} \text{Number of Tickets (X)} & \text{Probability} & \text{Cumulative Probability} \\ \hline 1 & 0.29 & 0.29 \\ 2 & 0.44 & 0.29 + 0.44 = 0.73 \\ 3 & 0.19 & 0.73 + 0.19 = 0.92 \\ 4 & 0.06 & 0.92 + 0.06 = 0.98 \\ 5 & 0.02 & 0.98 + 0.02 = 1.00 \\ \end{array} \][/tex]
This gives us the cumulative distribution:
[tex]\[ [0.29, 0.73, 0.92, 0.98, 1.00] \][/tex]
3. Determine the median:
The median is the point at which the cumulative probability reaches or exceeds 0.5. From the cumulative distribution:
[tex]\[ \begin{array}{c|c} \text{Number of Tickets (X)} & \text{Cumulative Probability} \\ \hline 1 & 0.29 \\ 2 & 0.73 \\ 3 & 0.92 \\ 4 & 0.98 \\ 5 & 1.0 \\ \end{array} \][/tex]
We see that at [tex]\(X = 2\)[/tex], the cumulative probability is 0.73, which is the first value greater than or equal to 0.5.
Therefore, the median of the distribution is 2.
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