High School

We appreciate your visit to The following data represent the amount of time in minutes a random sample of eight students took to complete the online portion of an exam. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

The following data represent the amount of time (in minutes) a random sample of eight students took to complete the online portion of an exam in a particular statistics course.

Compute the mean, median, and mode time.

65.3, 73.9, 91.6, 113.9, 128.4, 97.9, 94.7, 122.1

1. Compute the mean exam time. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The mean exam time is (Round to two decimal places as needed)
B. The mean does not exist.

2. Compute the median exam time. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The median exam time is (Round to two decimal places as needed)
B. The median does not exist.

3. Compute the mode exam time. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The mode is (Round to two decimal places as needed. Use a comma to separate answers as needed.)
B. The mode does not exist.

Answer :

A. The mean exam time is 100.98 minutes.

A. The median exam time is 96.30 minutes.

B. The mode does not exist.

To compute the mean, median, and mode of the exam times, let's arrange the data in ascending order:

65.3, 73.9, 91.6, 94.7, 97.9, 113.9, 122.1, 128.4

Mean:

To find the mean, we sum up all the values and divide by the total number of values:

Mean = (65.3 + 73.9 + 91.6 + 94.7 + 97.9 + 113.9 + 122.1 + 128.4) / 8

Mean = 807.8 / 8

Mean = 100.975 (rounded to two decimal places)

The mean exam time is approximately 100.98 minutes.

Median:

To find the median, we locate the middle value of the ordered data set. Since we have an even number of data points (8), we take the average of the two middle values:

Median = (94.7 + 97.9) / 2

Median = 192.6 / 2

Median = 96.3 (rounded to two decimal places)

The median exam time is 96.30 minutes.

Mode:

The mode represents the value(s) that appear most frequently in the data set. In this case, there is no value that appears more than once. Therefore, there is no mode in this data set.

So, the answers are:

A. The mean exam time is 100.98 minutes.

A. The median exam time is 96.30 minutes.

B. The mode does not exist.

For such more questions on Stats Exam Time Analysis

https://brainly.com/question/14190354

#SPJ8

Thanks for taking the time to read The following data represent the amount of time in minutes a random sample of eight students took to complete the online portion of an exam. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada