Let’s solve each question step by step.
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Question 1:
You roll a standard cube 10 times. Results:
6, 4, 6, 1, 5, 2, 4, 2, 4, 3
We are asked: What is P(rolling a 5)?
That means: out of the 10 rolls, how many times did we get a 5?
Look at the list:
Only
one time — the fifth number is 5.
So, probability = (number of 5s) / (total rolls) = 1/10
✔ Answer: C → 1/10
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Question 2:
Same results: 6, 4, 6, 1, 5, 2, 4, 2, 4, 3
What is P(rolling a 6)?
Count how many 6s: first and third → that’s
two 6s.
Probability = 2/10 = 1/5
Wait — let’s check options:
A) 1/5
B) 3/10
C) 4/5
D) 1/10
2/10 simplifies to 1/5 → so A is correct.
But wait — double-check the list:
Positions:
1: 6
2: 4
3: 6 ← second 6
4: 1
5: 5
6: 2
7: 4
8: 2
9: 4
10: 3
Yes, only two 6s → 2/10 = 1/5
✔ Answer: A → 1/5
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Question 3:
Same results: 6, 4, 6, 1, 5, 2, 4, 2, 4, 3
What is P(rolling an even number)?
Even numbers on a die: 2, 4, 6
Go through the list and count how many are even:
1. 6 → even
✔
2. 4 → even
✔
3. 6 → even
✔
4. 1 → odd
✘
5. 5 → odd
✘
6. 2 → even
✔
7. 4 → even
✔
8. 2 → even
✔
9. 4 → even
✔
10. 3 → odd
✘
Count the
✔: positions 1,2,3,6,7,8,9 → that’s
7 evens.
Total rolls: 10
Probability = 7/10
Options:
A) 7/10
B) 6/10
C) 1/10
D) 5/10
✔ Answer: A → 7/10
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Question 4:
You are rolling a standard number cube (1 to 6). What is the probability of rolling a 5?
This is theoretical probability — not based on experimental data like before.
Standard cube has 6 faces: 1,2,3,4,5,6 → all equally likely.
Only one face shows 5.
So, P(rolling a 5) = 1/6
Options:
A) 2/3
B) 1/2
C) 1/6
D) 1/3
✔ Answer: C → 1/6
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Question 5:
Same setup: standard cube (1 to 6). Probability of rolling a 6?
Again, theoretical.
One face out of six is 6 → so 1/6
Options:
A) 1/6
B) 2/3
C) 1/2
D) 1/3
✔ Answer: A → 1/6
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Final Answer:
1. C
2. A
3. A
4. C
5. A
Parent Tip: Review the logic above to help your child master the concept of 9th grade worksheet for all subjects.