Probability Spinners Worksheet 1 | Probability worksheets ... - Free Printable

Let's solve each probability question step by step based on the two spinners shown in the image.

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First Spinner (Numbers: 1, 2, 3, 4)

The spinner is divided into 8 equal sections. Let's list the numbers:

- 1: appears 2 times
- 2: appears 1 time
- 3: appears 3 times
- 4: appears 2 times

Total sections = 8

We'll use the formula:
> Probability = (Number of favorable outcomes) / (Total number of outcomes)

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#### 1) What is the probability of the spinner landing on 1 or 4?

- Number of 1s = 2
- Number of 4s = 2
- Total favorable = 2 + 2 = 4
- P(1 or 4) = 4/8 = 1/2

✔ Answer: 1/2

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#### 2) What is the probability of the spinner not landing on 1?

- Number of 1s = 2
- So, not landing on 1 = 8 - 2 = 6
- P(not 1) = 6/8 = 3/4

✔ Answer: 3/4

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#### 3) What is the probability of the spinner not landing on 2?

- Number of 2s = 1
- Not landing on 2 = 8 - 1 = 7
- P(not 2) = 7/8

✔ Answer: 7/8

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#### 4) What is the probability of the spinner landing on 4?

- Number of 4s = 2
- P(4) = 2/8 = 1/4

✔ Answer: 1/4

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#### 5) What is the probability of the spinner not landing on 2?

Same as #3 → 7/8

✔ Answer: 7/8

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#### 6) What is the probability of the spinner landing on 3?

- Number of 3s = 3
- P(3) = 3/8

✔ Answer: 3/8

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#### 7) What is the probability of the spinner not landing on 4?

- Number of 4s = 2
- Not 4 = 8 - 2 = 6
- P(not 4) = 6/8 = 3/4

✔ Answer: 3/4

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Second Spinner (Letters: A, B, C, E)

This spinner has 6 equal sections.

List of sections:

- A: 1
- B: 1
- C: 2
- E: 2

Total = 6

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#### 8) What is the probability of the spinner not landing on C?

- C appears 2 times
- Not C = 6 - 2 = 4
- P(not C) = 4/6 = 2/3

✔ Answer: 2/3

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#### 9) What is the probability of the spinner landing on B?

- B appears 1 time
- P(B) = 1/6

✔ Answer: 1/6

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#### 10) What is the probability of the spinner not landing on A or C?

- A: 1 section
- C: 2 sections
- A or C = 1 + 2 = 3 sections
- Not (A or C) = 6 - 3 = 3 sections
- P(not A or C) = 3/6 = 1/2

✔ Answer: 1/2

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#### 11) What is the probability of the spinner landing on A?

- A appears 1 time
- P(A) = 1/6

✔ Answer: 1/6

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#### 12) What is the probability of the spinner landing on E?

- E appears 2 times
- P(E) = 2/6 = 1/3

✔ Answer: 1/3

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#### 13) What is the probability of the spinner landing on A, B, or E?

- A: 1
- B: 1
- E: 2
- Total = 1 + 1 + 2 = 4
- P(A or B or E) = 4/6 = 2/3

✔ Answer: 2/3

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#### 14) What is the probability of the spinner landing on B or C?

- B: 1
- C: 2
- Total = 1 + 2 = 3
- P(B or C) = 3/6 = 1/2

✔ Answer: 1/2

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✔ Final Answers:

1) 1/2
2) 3/4
3) 7/8
4) 1/4
5) 7/8
6) 3/8
7) 3/4
8) 2/3
9) 1/6
10) 1/2
11) 1/6
12) 1/3
13) 2/3
14) 1/2

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