Karen went on holidays for two weeks in August 2011 - Junior Cycle Mathematics - Question 5 - 2012
Question 5
Karen went on holidays for two weeks in August 2011. Below is a record of the daily temperatures for the two weeks in August 2011.
Day Tempe... show full transcript
Worked Solution & Example Answer:Karen went on holidays for two weeks in August 2011 - Junior Cycle Mathematics - Question 5 - 2012
Step 1
What was the temperature on Thursday 18th of August?
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Answer
The temperature on Thursday 18th of August was 17°.
Step 2
Use a line plot to show the number of times each temperature was recorded.
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Answer
The line plot would show the following counts for the recorded temperatures:
14°: 1 time
15°: 3 times
16°: 3 times
17°: 5 times
18°: 3 times
19°: 1 time You would represent these counts on a horizontal line graph with 'Temperature' on the x-axis and the count on the y-axis.
Step 3
What is the range of the data?
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The range of the data is calculated as the difference between the maximum and minimum temperatures recorded:
extRange=extMaximum−extMinimum=19°−14°=5°
Step 4
What is the mode of the data?
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The mode of the data is the temperature that appears most frequently. In this case, the mode is 17°, which occurs 5 times.
Step 5
Karen says that "on average it was warmer during the first week than the second week of my holiday". Do you agree with Karen? Explain your answer.
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Answer
Yes. The average for the first week was 17 degrees, but the average for the second week was only 16 degrees.
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