Your Scores for the 20 Surprise Math Quizzes Last Semester $\begin{array} { l l l l l l l l l l l } 5.5&9.5&10.0&2.5&8.0&9.5&7.5&6.5&7.0&8.0\\8.0&8.5&7.5&7.0&8.0&10.0&10.0&8.5&7.5&8.0\end{array}$

question 80

Multiple Choice

Your scores for the 20 surprise math quizzes last semester were (out of 10) $\begin{array} { l l l l l l l l l l l } 5.5&9.5&10.0&2.5&8.0&9.5&7.5&6.5&7.0&8.0\\8.0&8.5&7.5&7.0&8.0&10.0&10.0&8.5&7.5&8.0\end{array}$
Use these raw data to construct a frequency table with the following brackets: 2.1 - 4.0, 4.1 - 6.0, 6.1 - 8.0, 8.1 - 10.0. Find the probability distribution using the (rounded) midpoint values as the values of X.

• A)
• \(\begin{array} { l }
• x & 3.0&5.0&7.0&9.0\\
• P ( X = x ) &0.05&0.55&0.05&0.35 \\
• \end{array}\)
• B)

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