Maths Group11

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ትምህርታችሁን በምን አይነት መንገድ መከታተል ትፈልጋላችሁ

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

Which of the following statement is true? A. All rational functions can be polynomial functions. B. All polynomial functions can be rational functions. C. All constant functions can not be rational functions. D. All zero functions can not be a polynomial functions. Write your answer under the comment! 🙏

ትምህርታችሁን በምን አይነት መንገድ መከታተል ትፈልጋላችሁ

ትምህርታችሁን በምን አይነት መንገድ መከታተል ትፈልጋላችሁ

በአሁን ሰዓት ለትምህርታችሁ ምን ያስፈልጋቹዋል ?

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