6.4 Day 1 Practice

Instructions

Below are two dot plots created from the data we collected from Period 4 and 7 on the number of letter's we had in our full names. Answer the questions below using the dot plot and other given information.

Required

1

What is the average (mean) number of letters in a student's name from Period 4? (Round to the nearest tenth)

Required

1

What is the average (mean) number of letters in a student's name from Period 7? (Round to the nearest tenth)

Required

1

Based on the two means, which class contains student's with longer names?

Required

1

Find the Mean Absolute Deviation for Period 4. (Take the mean of Period 4's data and subtract it from each data point in the dot plot. Make sure to change any negative value to positive and then find the mean of those 19 results) Round to the nearest tenth as necessary

Required

1

What is the average (mean) number of letters in a student's name from Period 4? (Round to the nearest tenth)

What is the average (mean) number of letters in a student's name from Period 7? (Round to the nearest tenth)

Based on the two means, which class contains student's with longer names?

Find the Mean Absolute Deviation for Period 4. (Take the mean of Period 4's data and subtract it from each data point in the dot plot. Make sure to change any negative value to positive and then find the mean of those 19 results) Round to the nearest tenth as necessary

Considering the Mean Absolute Deviation for Period 4 and that Period 7 has a MAD of 3.4, what can you infer about the data?