Question

23 multiple choice 1 point
a statistics teacher surveys a random sample of ten students and records the number of hours the students studied for their most recent test. here are data:
dotplot image for number of hours spent studying
the range of this distribution is
○ 1 to 6 hours.
○ 5 hours.
○ 7 hours.
○ impossible to calculate using the given information.
○ 0 to 6 hours.

24 multiple choice 1 point
a statistics student records the number of questions missed on each of 9 exams. here is a dotplot of the data.
dotplot image for number of incorrect questions

Explanation:

Question 23

Step1: Recall the formula for range

The range of a data set is calculated as the difference between the maximum value and the minimum value, i.e., \( \text{Range}=\text{Maximum value}-\text{Minimum value} \).

Step2: Identify the minimum and maximum values from the dotplot

From the dotplot for the number of hours spent studying, the minimum value (the leftmost dot) is 1 and the maximum value (the rightmost dot) is 6.

Step3: Calculate the range

Using the formula for range, we substitute the values: \( \text{Range} = 6 - 1 = 5 \) hours.

Step1: Recall the formula for range

The range of a data set is \( \text{Range}=\text{Maximum value}-\text{Minimum value} \).

Step2: Identify the minimum and maximum values from the dotplot

From the dotplot for the number of incorrect questions, the minimum value (the leftmost dot) is 0 and the maximum value (the rightmost dot) is 9.

Step3: Calculate the range

Using the formula for range, we substitute the values: \( \text{Range}=9 - 0=9 \). But since the question is not fully given, if we assume it's a range question, this is how we calculate.

(Note: If the actual question for 24 is different, please provide the full question to get a more accurate answer.)

Answer:

5 hours (the option "5 hours")

Question 24 (assuming the question is to find range or some measure, but since the question is not fully provided, if we assume it's about range similar to question 23):