Quiz: Business Mathematics & Statistics
8 Questions
| Attempts: 2191
Business Mathematics & Statistics Chapter No. 26 to 32
Questions and Answers
- 1.For a data, if mean > median then its distribution is:
- A.
Asymmetrical
- B.
Symmetrical
- C.
Left asymmetrical
- D.
Right asymmetrical
- 2.In a positively skewed distribution:
- A.
The mean, median, and mode are all equal.
- B.
The mean is larger than the median
- C.
The median is larger than the mean.
- D.
The standard deviation must be larger than the mean or the median.
- 3.As the regression line equation is y = ax + b, where b is:
- A.
The x-intercept
- B.
The y-intercept
- C.
The slope
- D.
None of these
- 4.If strength of the association between X and Y is very weak, then r = ?
- A.
R = - 1
- B.
R = 0
- C.
R = 1
- D.
R = 2
- 5.My estimated regression line is Y = 17 + 4X. The intercept is equal to:
- A.
17
- B.
4
- C.
21
- D.
13
- 6.The variance of the 3, 3, 3, 3, 3 is:
- A.
Zero
- B.
One
- C.
Twice the standard standard deviation
- D.
Half of the range
- 7.The regression equation should only used:
- A.
When there is significant linear correlation
- B.
When there is significant mluticorrelation
- C.
When there is significant quadratic correlation
- D.
When there is significant simple correlation
- 8.The point where a straight line cuts the x-axis is called:
- A.
Slope
- B.
Starting point
- C.
Y-intercept
- D.
X-intercept
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