Business Statistics - Practice Test

[#91] Classifications done on the basis of attributes blindness and region are known as

(A) Two-way qualitative classification

(B) Two way quantitative classification

(C) Two-way conditional classification

(D) Two-way qualitative and geographical classification

Correct Answer

(D) Two-way qualitative and geographical classification

[#92] If your score in an exam was 80, with a mean of 60, what would be the standardised score for this exam if the standard deviation is 15 ?

(A) 1.33

(B) 1.25

(C) 1.52

(D) 1.72

Correct Answer

(A) 1.33

[#93] Suppose I discover that as I eat more vegetables, my body weight decreases. I have demonstrated

(A) a negative correlation

(B) a positive correlation

(C) random sampling

(D) a cause and effect relationship

Correct Answer

(A) a negative correlation

[#94] Match the following. List-I (Theoretical Distribution) List-II (Formula) a. Mean of binomial distribution 1. np b. Mean of poisson distribution 2. m c. Standard deviation of binomial distribution 3. $$sqrt {{ ext{npq}}} $$ d. Standard deviation of poisson distribution 4. $$sqrt { ext{m}} $$

(A) a-1, b-2, c-3, d-4

(B) a-4, b-3, c-2, d-1

(C) a-1, b-3, c-2, d-4

(D) a-4, b-1, c-2, d-3

Correct Answer

(A) a-1, b-2, c-3, d-4

[#95] Correlation means

(A) The whole subject of correlation refers to that inter-relation between separate character by which they tend, in some degree at least, to move together

(B) That between two series or groups of data there exists some caustional connections

(C) Whenever some definite connections exist between the two or more groups, classes or series to data, there is said to be correlation

(D) All of the above

Correct Answer

(D) All of the above

Business Statistics - Study Mode

[#91] Classifications done on the basis of attributes blindness and region are known as

Correct Answer

[#92] If your score in an exam was 80, with a mean of 60, what would be the standardised score for this exam if the standard deviation is 15 ?

Correct Answer

[#93] Suppose I discover that as I eat more vegetables, my body weight decreases. I have demonstrated

Correct Answer

[#94] Match the following. List-I (Theoretical Distribution) List-II (Formula) a. Mean of binomial distribution 1. np b. Mean of poisson distribution 2. m c. Standard deviation of binomial distribution 3. $$sqrt {{ ext{npq}}} $$ d. Standard deviation of poisson distribution 4. $$sqrt { ext{m}} $$

Correct Answer

[#95] Correlation means

Correct Answer