Mixed Topic Worksheet Grades 4/5: Day 022
- 1
Question 1. Hana asks 500 people at a rugby ground whether they like rugby.
Hana says, "My sample is large so it cannot be biased."
Is Hana correct?
Give a reason for your answer.Identifying Biased Samples▶ Show worked answerHide worked answer
- B1: No
- C1: the people at a rugby ground are more likely to like rugby, however many are asked
Answer: No, a large sample can still be biased[2 marks] - 2
Question 2. Work out the coordinates of the midpoint of the line segment joining P(-6, 2) and Q(4, 8).
Midpoint of Two Points▶ Show worked answerHide worked answer
- M1: (-6 + 4) ÷ 2 or (2 + 8) ÷ 2
- A1: (-1, 5)
Answer: (-1, 5)[2 marks] - 3
Question 3. Ben is working out 0⁵. Ben's working: 0⁵ = 0 + 5 = 5. Work out the correct value of 0⁵ and describe what Ben did.
Powers of Zero & One▶ Show worked answerHide worked answer
- M1: 0 × 0 × 0 × 0 × 0
- A1: 0 with a description of Ben's error
Answer: 0. Ben added 5 to 0 instead of multiplying five 0s together[2 marks] - 4
Question 4. xi=x : x is an integer, 10 ≤ x ≤ 30 and A=x : x is a square number. Work out n(A').
Fundamentals of Set Notation▶ Show worked answerHide worked answer
- M1: n(xi)=21 and A=16, 25
- A1: 21-2=19
Answer: 19[2 marks] - 5
Question 5. The diagram shows a shape made from a rectangle and a semicircle.
The diameter of the semicircle is equal to the width of the rectangle.
Work out the area of the shape.
Give your answer to 1 decimal place.Area of Compound Shapes▶ Show worked answerHide worked answer
- M1: semicircle area = tfrac12 × π × 4²
- M1: 14 × 8 + semicircle area
- A1: 137.1
Answer: 137.1 cm²[3 marks]
Mixed Topic Worksheet Grades 4/5: Day 022
- 1
Question 1. Hana asks 500 people at a rugby ground whether they like rugby.
[2 marks]
Hana says, "My sample is large so it cannot be biased."
Is Hana correct?
Give a reason for your answer.Identifying Biased Samples▶ Show worked answerHide worked answer
- B1: No
- C1: the people at a rugby ground are more likely to like rugby, however many are asked
Answer: No, a large sample can still be biased - 2
Question 2. Work out the coordinates of the midpoint of the line segment joining P(-6, 2) and Q(4, 8).
[2 marks]Midpoint of Two Points▶ Show worked answerHide worked answer
- M1: (-6 + 4) ÷ 2 or (2 + 8) ÷ 2
- A1: (-1, 5)
Answer: (-1, 5) - 3
Question 3. Ben is working out 0⁵. Ben's working: 0⁵ = 0 + 5 = 5. Work out the correct value of 0⁵ and describe what Ben did.
[2 marks]Powers of Zero & One▶ Show worked answerHide worked answer
- M1: 0 × 0 × 0 × 0 × 0
- A1: 0 with a description of Ben's error
Answer: 0. Ben added 5 to 0 instead of multiplying five 0s together - 4
Question 4. xi=x : x is an integer, 10 ≤ x ≤ 30 and A=x : x is a square number. Work out n(A').
[2 marks]Fundamentals of Set Notation▶ Show worked answerHide worked answer
- M1: n(xi)=21 and A=16, 25
- A1: 21-2=19
Answer: 19 - 5
Question 5. The diagram shows a shape made from a rectangle and a semicircle.
[3 marks]
The diameter of the semicircle is equal to the width of the rectangle.
Work out the area of the shape.
Give your answer to 1 decimal place.Area of Compound Shapes▶ Show worked answerHide worked answer
- M1: semicircle area = tfrac12 × π × 4²
- M1: 14 × 8 + semicircle area
- A1: 137.1
Answer: 137.1 cm²
Mixed Topic Worksheet Grades 4/5: Day 022
- 1
Question 1. Hana asks 500 people at a rugby ground whether they like rugby.
Hana says, "My sample is large so it cannot be biased."
Is Hana correct?
Give a reason for your answer.Identifying Biased Samples▶ Show worked answerHide worked answer
- B1: No
- C1: the people at a rugby ground are more likely to like rugby, however many are asked
Answer: No, a large sample can still be biased[2 marks] - 2
Question 2. Work out the coordinates of the midpoint of the line segment joining P(-6, 2) and Q(4, 8).
Midpoint of Two Points▶ Show worked answerHide worked answer
- M1: (-6 + 4) ÷ 2 or (2 + 8) ÷ 2
- A1: (-1, 5)
Answer: (-1, 5)[2 marks] - 3
Question 3. Ben is working out 0⁵. Ben's working: 0⁵ = 0 + 5 = 5. Work out the correct value of 0⁵ and describe what Ben did.
Powers of Zero & One▶ Show worked answerHide worked answer
- M1: 0 × 0 × 0 × 0 × 0
- A1: 0 with a description of Ben's error
Answer: 0. Ben added 5 to 0 instead of multiplying five 0s together[2 marks] - 4
Question 4. xi=x : x is an integer, 10 ≤ x ≤ 30 and A=x : x is a square number. Work out n(A').
Fundamentals of Set Notation▶ Show worked answerHide worked answer
- M1: n(xi)=21 and A=16, 25
- A1: 21-2=19
Answer: 19[2 marks] - 5
Question 5. The diagram shows a shape made from a rectangle and a semicircle.
The diameter of the semicircle is equal to the width of the rectangle.
Work out the area of the shape.
Give your answer to 1 decimal place.Area of Compound Shapes▶ Show worked answerHide worked answer
- M1: semicircle area = tfrac12 × π × 4²
- M1: 14 × 8 + semicircle area
- A1: 137.1
Answer: 137.1 cm²[3 marks]