TopicName Test - Jacaranda



WorkSHEET 9.2 Collecting and entering data

Name: ___________________________

| |[pic] | | |

| |What was Beth’s weekly income in 1996? | | |

| |In which two years did her income stay the same? | | |

| |How much has her income risen since she joined the company in 1996? |$600 | |

| | |1998 and 1999 | |

| | |$200 per week | |

| | | | |

| |Beth wants to talk to her boss about a salary increase. |[pic] | |

| |Produce a graph which would support her claim that her salary has | | |

| |risen very little over the years she has been employed with the | | |

| |company. | | |

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| | | | |

| |Using the same data as in question 1, draw a graph which Beth’s boss |[pic] | |

| |could produce, claiming that her salary has increased substantially | | |

| |since joining the company. | | |

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| | |[pic] | |

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| |The police claim that their extra patrols in the months of April and | | |

| |May have greatly reduced the number of car thefts in Brisbane. | | |

| |Draw a graph to support this claim. | | |

| |[pic] | | |

| |From the histogram above draw a frequency distribution table showing | | |

| |Days and Frequency. | | |

| |On which day did Joe consume the least coffee? | | |

| |On which day did he consume nine cups of coffee? | | |

| | |[pic] | |

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| | |Monday | |

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| | |Friday | |

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| |The following data shows the number of children in each household in a| | |

| |suburban street: | | |

| |2, 2, 3, 2, 3, 4, 3, 1, 3, 2, 3, 3, 4, 1, 1, 2, 2, 2. | | |

| | |[pic] | |

| |Display the information in a frequency table. | | |

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| |Display the information as a histogram/frequency polygon combination |[pic] | |

| |graph. | | |

| | |18 people were surveyed | |

| |How many people were surveyed? | | |

| | | | |

| |Key: 2(5 = 25 | | |

| |[pic] |median = [pic] | |

| | |lower quartile = [pic] | |

| |Use the stem-and-leaf plot above to find: |upper quartile = [pic] | |

| |median |interquartile range = 49.5 – 21 = 28.5 | |

| |lower quartile | | |

| |upper quartile | | |

| |interquartile range. | | |

| | | | |

| |Draw a box-and-whisker plot of the data displayed in the stem-and-leaf|[pic] | |

| |plot in | | |

| |question 7. | | |

| |Write a five-number summary for the following test percentages. |Arrange in order | |

| |21%, 83%, 47%, 62%, 94%, 52%, 71%. | | |

| | |21, 47, 52, 62, 71, 83, 94 | |

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| | |Five-number summary = 21, 47, 62, 83, 94 | |

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| |Draw a box-and-whisker plot of the percentages displayed in question | | |

| |9. |[pic] | |

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|Number of car thefts in Brisbane |

|over six months |

|Month |Jan |Feb |Mar |Apr |May |Jun |

|No. of car |30 |32 |28 |22 |17 |25 |

|thefts | | | | | | |

lowest score

lower quartile

median

upper quartile

highest score

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