#what is the answer to this

24 messages · Page 1 of 1 (latest)

frail tide
steep fjord
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a cumulative frequency table

frail tide
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what is the answer to this

frail tide
steep fjord
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cumulative frequency is the number of data entries up until that point

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so assuming the table shows data for the entire class

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the number of students in the class would be 25

frail tide
steep fjord
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7

frail tide
steep fjord
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at most 130cm means less than or equal to 130

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so itll be all of the entries up until the 2nd class

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therefore its 7 (cumulative freq table so u just read it)

frail tide
steep fjord
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for this box plot the IQR begins at 20 marks and ends at 35 marks

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given that 6 students scored => 35 marks this means that the top 25% of students scored =>35 marks, which means 6 students is a quarter of her class

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6*4=24

steep fjord
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box plot

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IQR is the middle 50%

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IQR is between bottom and top 25%

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35 is at the end of the iqr therefore it is the top 25%

frail tide
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Thank you

frail tide