The graph shows the number of umbrellas sold in Ling's shop for each quarter from quarter 1 of 2017 to quarter 3 of 2019. (a) The shop sold 32 umbrellas in quarter 4 of 2019. Complete the graph. (b) Make one comment about the seasonal variation shown in this graph. (c) Make one comment about the annual variation shown in this graph. (d) Ling predicts that she will sell 50 umbrellas in quarter 1 of 2020. What assumption has she made?

Photo AI

The graph shows the number of umbrellas sold in Ling's shop for each quarter from quarter 1 of 2017 to quarter 3 of 2019 - OCR - GCSE Maths - Question 9 - 2020 - Paper 1

Question 9

The graph shows the number of umbrellas sold in Ling's shop for each quarter from quarter 1 of 2017 to quarter 3 of 2019. (a) The shop sold 32 umbrellas in quarter ... show full transcript

Worked Solution & Example Answer:The graph shows the number of umbrellas sold in Ling's shop for each quarter from quarter 1 of 2017 to quarter 3 of 2019 - OCR - GCSE Maths - Question 9 - 2020 - Paper 1

Step 1

Complete the graph.

96%

114 rated

Answer

The point for quarter 4 of 2019 should be marked at 32 umbrellas sold on the graph. This means placing a point above quarter 4 in the year 2019 at the corresponding height between 30 and 40 on the y-axis.

Step 2

Make one comment about the seasonal variation shown in this graph.

99%

104 rated

Answer

The graph indicates that the number of umbrellas sold tends to increase during certain quarters each year, suggesting a seasonal pattern where sales peak in specific seasons, possibly during rainy seasons.

Step 3

Make one comment about the annual variation shown in this graph.

96%

101 rated

Answer

The annual variation shows that there is a general upward trend over the years, meaning that the sales in certain quarters tend to increase when comparing one year to another.

Step 4

What assumption has she made?

98%

120 rated

Answer

Ling has assumed that the sales in quarter 1 of 2020 will follow the same upward trend as seen in previous years, predicting a consistent demand for umbrellas.

97% of Students

Report Improved Results

98% of Students

Recommend to friends

100,000+

Students Supported

1 Million+

Questions answered

The graph shows the number of umbrellas sold in Ling's shop for each quarter from quarter 1 of 2017 to quarter 3 of 2019 - OCR - GCSE Maths - Question 9 - 2020 - Paper 1

Worked Solution & Example Answer:The graph shows the number of umbrellas sold in Ling's shop for each quarter from quarter 1 of 2017 to quarter 3 of 2019 - OCR - GCSE Maths - Question 9 - 2020 - Paper 1

Complete the graph.

Make one comment about the seasonal variation shown in this graph.

Make one comment about the annual variation shown in this graph.

What assumption has she made?

Join the GCSE students using SimpleStudy...

Other GCSE Maths topics to explore