Happy Gregorian New Year 2026! 🥂✨
May this Gregorian New Year bring you peace, health, and success.
@maths_group11
May this Gregorian New Year bring you peace, health, and success.
@maths_group11
❤3🔥1
Which of the following relation is a function?
Anonymous Quiz
10%
R = {(x, y): y is a grandmother of x}
52%
R = {x, y): y is a father of x}
28%
R = {x, y): x is a mother of y}
10%
R = {x, y) : y is a brother of x}
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If f = {(1, 2), (-3, 2), (2, 5) and g = {(2, 4), (1, 5), (3, 2). Then, what is f+g ?
Anonymous Quiz
68%
{(3, 6), (-2, 7), (5, 7)}
15%
{(3, 6), (-1, 6), (7, 5)}
4%
{(1, -3), (2, 1)}
13%
{(1, 7), (2, 9)}
🤔10❤7👏1
Which of the following function is increasing?
Anonymous Quiz
17%
f(x) = -3x + 4
14%
f(x) + 2x = 1
51%
2y - 4 = x + 8
19%
x + 6y = 5
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Which of the following is NOT true about the function f(x) = 3x + 6 ?
Anonymous Quiz
7%
The function is increasing
19%
The x- intercept of the function is (-2, 0)
7%
The y- intercept of the function is (0, 6)
67%
The slope of the function is -3
Let f(x) = ax + b, and f(1) = 5 and f(2) = 12, then what are the values of a and b respectively ?
Anonymous Quiz
59%
7 and -2
23%
-2 and 7
11%
1 and 4
7%
-1 and 6
Which of the following defines density?
Anonymous Quiz
84%
It is mass per volume.
11%
It is the difference between mass and volume.
2%
It is the sum of mass and volume.
3%
It is the product of mass and volume.
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She usually ____ her parents. They love her very much.
Anonymous Quiz
15%
help
71%
helps
9%
helped
5%
is helping
👍6
Cars ___ by the factory every day.
Anonymous Quiz
24%
produce
22%
produces
16%
is produced
39%
are produced
🥰5❤2🙏1
Hordoftoonni Amantii Kiristaanaa marti Baga Ayyaana Qilleettiin isin Gahe!
Ayyaanni kun kan
_nageenyaa
_Milkaa'ina fi
Kan Gammachuu isiniif haa ta'u!!!
Ayyaana Gaarii!!!!
Happy Christmas!!!
Ayyaanni kun kan
_nageenyaa
_Milkaa'ina fi
Kan Gammachuu isiniif haa ta'u!!!
Ayyaana Gaarii!!!!
Happy Christmas!!!
❤6🥰2
The element with atomic number 35 belongs to:
Anonymous Quiz
8%
s-block
49%
p-block
34%
d-block
9%
f-block
🔥3❤2🙏1
Which technique is most commonly used to obtain isolated bacterial colonies?
Anonymous Quiz
15%
Pour Plate Method
45%
Spread Plate Method
23%
Streak Plate Method
17%
Enrichment Culture
❤4🙏3🥰1🤔1
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
#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
2. B
3. C
4. B
5. C
@maths_group11
@maths_group11
❤7