Maths-
General
Easy

Question

200 people responded to a survey. Of those who had green eyes, 7 had blonde hair, 9 had brown hair and 2 had red hair. Of those who had brown eyes, 76 had blonde hair 89 had brown hair, and 17 had red hair. Construct a two-way table to display these data. Then identify the least common combination of eye and hair color. Explain.

hintHint:

  • Categories are labelled in the left column and top row.
  • The counts are placed in the centre of the table.
  • Totals appear at the end of each row and column.
  • A sum of all counts (a grand total) is placed at the bottom right.

The correct answer is: people with green eyes and red hair are least.


    Answer:
    • Two-way frequency chart: 


    Blonde hair

    Brown hair

    Red hair

    Total

    Green eyes

    7

    9

    2

    18

    Brown eyes

    76

    89

    17

    182

    Total

    83

    98

    19

    200

    • Final Answer:
    Hence, people with green eyes and red hair are least.

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