Median and Quartiles from a Cumulative Frequency Curve

"Cumulative frequency" means...

• Jogging sum

• Walking difference

• Running total of the frequency

• Sprinting maximum

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CCSS.6.SP.B.4

CCSS.6.SP.B.5

Cumulative frequency always goes on the...

• y axis

• x axis

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CCSS.6.SP.B.4

Which of these could be a cumulative frequency graph?

• 
• 

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CCSS.6.SP.A.2

CCSS.6.SP.B.4

The graph shows the masses of some pumpkins grown on an allotment. How many pumpkins were grown altogether?

• 30

• 27

• 28

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CCSS.2.MD.D.9

There is no time limit on this question. Take your time to read the example and this picture and understand what it means.

• Didn't bother

• Yes, I've read it carefully

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CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

How many times was the temperature recorded?

• 60 times

• 35 times

The median is therefore...

• the 30th value

• 30 degrees C.

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

The median temperature recorded in this cumulative frequency graph is

• 30

• 10 degrees C

• 19 degrees C

• 21 degrees C

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

The lower quartile is

• The 4th value, 13 degrees C

• The 15th value, 17 degrees C

• The 30th value, 21 degrees C

• The 45th value, 24.5 degrees C

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

The upper quartile is

• The 4th value, 13 degrees C

• The 15th value, 17 degrees C

• The 30th value, 21 degrees C

• The 45th value, 24.5 degrees C

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5