QuestionThe stem-and-leat plot shows the number of guesses for the number of marbles in a jar. Use the stem-and-leaf plot for questions 1-3.
Guesses for Number of Marbles in a Jar
\begin{tabular}{c|llllll}
\hline Stem & \multicolumn{6}{|c}{ Leaves } \\
\hline 6 & 5 & 5 & 6 & 8 & 9 & 9 \\
7 & 2 & 3 & 3 & 8 & 8 & 9 \\
8 & 3 & 5 & & & & \\
9 & 1 & 2 & 3 & 6 & & \\
& & 615 & represents 65
\end{tabular}
1. (1 point) Half the guesses is less than what number?
a. 73
b. 73.5
c. 75.5
d. 78
2. (1 point) How many guesses for the number of marbles in the jar?
a. 22
b. 18
c. 14
d. 31
3. (1 point) Two more guesses were added to the data set, their values were 63 and 68. Which statement about the data is true?
a. The range stays the same.
b. The range increases by two.
c. The range decreases.
d. The range doubles.
Studdy Solution
1. Half the guesses are less than \(75.5\).
So the answer is **c**.
2. There are \(18\) guesses.
So the answer is **b**.
3. The range increases by two.
So the answer is **b**.
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