Basic Statistics(Business Statistics ) Questions and Answers
Question 1. If x is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the x will be______________?
8
10
6
12
Explanation:-
Answer: Option B. -> 10 NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. In a week the prices of a bag of rice were 350 ,280, 340, 290, 320, 310, 300. The range is_____________?
60
90
70
100
Explanation:-
Answer: Option C. -> 70 NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. The Harmonic Mean of any two numbers is________________?
a+b2
2aba+b
ab−−√
a+b
Explanation:-
Answer: Option B. -> 2aba+b NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. If a distribution has two modes then this distribution is called______________?
Uni-Modal
Bi-Modal
Tri-Modal
Multi-Modal
Explanation:-
Answer: Option B. -> Bi-Modal NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. A contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be_____________?
3.86
8.37
9.21
10.63
Explanation:-
Answer: Option B. -> 8.37 NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. Which of the following Measure of averages is affected by extreme (very small or very largE. values in data set?
Geometric Mean
Median
Arithmetic Mean
Harmonic Mean
Mode
Explanation:-
Answer: Option C. -> Arithmetic Mean NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. Which of the following Measure of Averages is not based on all the values given in the data set?
Arithmetic Mean
Geometric Mean
Median
Mode
Both C. and D.
Explanation:-
Answer: Option E. -> Both C. and D. NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. The Geometric Mean of -2, 4, 03, 6, 0 will be______________?
-3
0
3
Cannot be Computed
None of these
Explanation:-
Answer: Option D. -> Cannot be Computed NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. Geometric means of X1 and X2 is________________?
X1+X2
X1+X2x
X1+X2−−−−−−−√
X1×X2−−−−−−−√
X1−−−√+X2−−−√
Explanation:-
Answer: Option D. -> X1×X2−−−−−−−√ NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. If 10% is added to each value of variable, the geometric mean of new variable is added by_______________?
5%
10%
No Change
110%
90%
Explanation:-
Answer: Option B. -> 10% NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!