Jasmine asked her classmates to name all the types of birds they found on a field trip to a local aviary.

1/8
reported finding a blue jay.

6/7
reported finding a finch.

1/3
reported finding a blackbird.

11/24
reported finding an owl.

Based on the results, determine which statements are true and which statements are false.

Over half the students found a finch.

More students found a blackbird than a finch.

More students found a blue jay than an owl.

More students found a finch than a blackbird.

More students found a blackbird than an owl.

1 answer

To determine the truth of the statements based on the proportions given, let's first convert each reported fraction into decimals or percentages for better comparison.

Let \( N \) be the total number of students.

  1. Blue Jay: \( \frac{1}{8}N = 0.125N \)
  2. Finch: \( \frac{6}{7}N \approx 0.857N \)
  3. Blackbird: \( \frac{1}{3}N \approx 0.333N \)
  4. Owl: \( \frac{11}{24}N \approx 0.458N \)

Now let's analyze each statement:

  1. Over half the students found a finch.

    • We know \( \frac{6}{7}N \approx 0.857N \) which is greater than half of \( N \) (which is \( 0.5N \)).
    • True
  2. More students found a blackbird than a finch.

    • The number of students who found a blackbird is \( \frac{1}{3}N \approx 0.333N \) and for a finch, it's \( \frac{6}{7}N \approx 0.857N \).
    • Since \( 0.333N < 0.857N \),
    • False
  3. More students found a blue jay than an owl.

    • The number of students who found a blue jay is \( \frac{1}{8}N = 0.125N \) and for an owl, it's \( \frac{11}{24}N \approx 0.458N \).
    • Since \( 0.125N < 0.458N \),
    • False
  4. More students found a finch than a blackbird.

    • As calculated earlier, \( \frac{6}{7}N \approx 0.857N \) (finch) is greater than \( \frac{1}{3}N \approx 0.333N \) (blackbird).
    • True
  5. More students found a blackbird than an owl.

    • The number of students who found a blackbird is \( \frac{1}{3}N \approx 0.333N \) compared to the number who found an owl \( \frac{11}{24}N \approx 0.458N \).
    • Since \( 0.333N < 0.458N \),
    • False

Summary of the Statements

  • Over half the students found a finch: True
  • More students found a blackbird than a finch: False
  • More students found a blue jay than an owl: False
  • More students found a finch than a blackbird: True
  • More students found a blackbird than an owl: False