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Maths Group11
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The main purpose of this channel is to: 1. Print various Maths questions. 2. Publishing various books. 3. Print various short notes. Share it with your friends! Hirriyyoota keessaniif share godha!
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9. Which one of the following was CORRECT about Omotic language family?
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8. Which of the following was NOT the most important reason for England, France and
Italy involved in the coup against Lij Eyasu?
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6. Which one of the following was the main reason of Etege Taytu removed from power in 1910?
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5. During Zemene Mesafint period, nominal Kings of Gondar were under control of--------
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4. Which event happened immediately after the death of Prophet Muhammad?
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3. All of the following was the effect of the Crusade wars EXCEPT?
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2. The battle of Embabo in 1882 was fought between Emperor Menelik II and Tekle
Haymanot while the battle of Dogali in 1887 was fought between ------------and -----------
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1. One of the following was feature of the reign of Tewodros II (1855-1868)?
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Let f(x) = x + 3 and g(x) = 2x - 3 then what is the value of (2f + 3g)(1) ?
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Let f = {(1, 2), (2, 3), (5, 6), (7, 8)} then what is the value of f(2) + f(5) ?
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Let R = {(x, y): x, y an element of {1, 2, 3, 4, 5} and y = 2x - 1} then what is the range of R?
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If the domain of the relation R = {(x, y): y= x + 3} is A = {1, 2, 3, 4} then what is the range of R?
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For the relation {(1, 2), (2, 3), (3, 4), (4, 5), (5, 6)}, then what is the domain of the given relation?
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Math's Grade 12 Unit 3
#5 Mcq with answer
1. Which statement about random sampling is FALSE?
A) It minimizes investigator bias.
B) It ensures proportional representation of subgroups.
C) It requires careful planning.
D) It applies to any population type.
2. If a new value equal to the mean is added to a dataset, which statement is true?
A) Mean increases, standard deviation decreases.
B) Mean stays the same, standard deviation decreases.
C) Mean stays the same, standard deviation increases.
D) Mean and standard deviation remain unchanged.
3. In a distribution where Mean = 12, Median = 14, Mode = 16, the skewness is:
A) Positively skewed
B) Symmetrical
C) Negatively skewed
D) Not determinable
4. If all values in a dataset are multiplied by 3, the variance becomes:
A) 3 times the original
B) 9 times the original
C) Unchanged
D) √3 times the original
5. Which sampling method divides the population into homogeneous subgroups?
A) Simple random sampling
B) Cluster sampling
C) Stratified sampling
D) Systematic sampling
Answer
1. B
2. B
3. C
4. B
5. C
@maths_group11
@maths_group11
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Which technique is most commonly used to obtain isolated bacterial colonies?
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