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Question 3 (1 point)
Mr. Liska wanted to know what his class' math marks looked like on a graph. He has 30 students in his class. Here are the student's final marks:
$\begin{array}{llllllllll}86 & 79 & 58 & 56 & 79 & 92 & 62 & 90 & 74 & 71 \\ 65 & 66 & 46 & 48 & 50 & 67 & 90 & 87 & 72 & 68 \\ 59 & 58 & 70 & 71 & 75 & 77 & 84 & 81 & 73 & 83\end{array}$
Complete the chart. (hint, use bins of $10 \%$, don't forget the fancy brackets)
what is the frequency of marks in the [61-70] mark bin?
$20 \%$
30
6
9
Answer
Final Answer: The frequency of marks in the [61-70] mark bin is \(\boxed{6}\).
Step 1 ：The question is asking for the frequency of marks in the [61-70] mark bin. This means we need to count how many marks fall within this range.
Step 2 ：First, we list all the marks: \(86, 79, 58, 56, 79, 92, 62, 90, 74, 71, 65, 66, 46, 48, 50, 67, 90, 87, 72, 68, 59, 58, 70, 71, 75, 77, 84, 81, 73, 83\).
Step 3 ：Then, we select the marks that fall within the [61-70] mark bin: \(62, 65, 66, 67, 68, 70\).
Step 4 ：We count the number of marks in this bin, which is 6.
Step 5 ：Final Answer: The frequency of marks in the [61-70] mark bin is \(\boxed{6}\).
