Ten participants in a treatment group were asked to rate their feelings of confidence on a scale of one to ten, with a value of ten indicating very confident. The data for the participants are below:  3, 4, 5, 5, 7, 7, 7, 8, 8, 10 What is the mean for these data?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.1: Measures Of Center
Problem 13PPS
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Ten participants in a treatment group were asked to rate their feelings of confidence on a scale of one to ten, with a value of ten indicating very confident. The data for the participants are below: 

3, 4, 5, 5, 7, 7, 7, 8, 8, 10

What is the mean for these data?

 6 6.4 7 7.5 7.8

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