Calculating the Mean for a Frequency Distribution

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The table to the right shows the students’ responses to the question "How stressed have you felt in the last 2½ weeks, on a scale of 0 to 10, with 0 being not stressed at all and 10 being as stressed as possible?"

Use the frequency distribution to find the mean of the stress-level ratings.
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Welcome back it beans a long time you didn’t post any video 😕

shaboebrahimi
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put your pointer on the number or row you are talking about that would help a beginner like me

TRILLGFP
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What if we replaced the stress rating x with a monthly commission and it said $300 up to $400 with a frequency of 2? Do we subtract 400 minus 300 so that we can 100 and then multiply it with the frequency? I have homework about this and I just don't get it.

lordprometheus