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    How do you calculate the mean on a histogram of one bar when you dont have the frequency density?
    I worked out that each square equals 5 and that the class width of the bar i want to find the mean of is 2000.
    The question says that " The histogram shows the results for 300 days. By considering the total area of the histogram, Find the mean number of days on which the daily income was between 4000 to 6000.
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    (Original post by Chelsea12345)
    How do you calculate the mean on a histogram of one bar when you dont have the frequency density?
    I worked out that each square equals 5 and that the class width of the bar i want to find the mean of is 2000.
    The question says that " The histogram shows the results for 300 days. By considering the total area of the histogram, Find the mean number of days on which the daily income was between 4000 to 6000.
    Can you put up the whole question, please?
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    Surely it is just: ((area of bar representing 4000-6000)/(total area of all bars))*300
 
 
 
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