MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Statistical Quality Control knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of these give an expression for the mean of a discrete distribution? |
| A. | ( int_{- infty}^{ infty} xf(x)dx ) |
| B. | ( sum_{i=1}^{ infty} x_i p(x_i) ) |
| C. | ( sum_{i=1}^{ infty} (x- mu)^2 p(x_i) ) |
| D. | ( int_{- infty}^{ infty} (x- mu)^2 f(x)dx ) |
| Answer» C. ( sum_{i=1}^{ infty} (x- mu)^2 p(x_i) ) | |
| 2. |
Cumulative frequency plot is defined as ____________ |
| A. | height of each bar less than or equal to upper limit of bin |
| B. | height of each bar more than or equal to upper limit of bin |
| C. | height of each bar less than or equal to lower limit of bin |
| D. | height of each bar more than or equal to upper limit of bin |
| Answer» B. height of each bar more than or equal to upper limit of bin | |
| 3. |
Relative frequency is defined as ____________ |
| A. | difference of frequency of an observation from the highest one |
| B. | frequency of an observation |
| C. | highest known frequency among all frequencies of the data |
| D. | frequencies of each bin divided by the number of observations (n) |
| Answer» E. | |
| 4. |
The histogram has the same meaning as the box plot, i.e. there are two names of same thing. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
For a set of data having 100 observations, how many bins must be created for satisfactory results of histogram? |
| A. | 25 |
| B. | 10 |
| C. | 28 |
| D. | 4 |
| Answer» C. 28 | |
| 6. |
Which of these is not the name of the intervals created for the construction of the histogram? |
| A. | Class intervals |
| B. | Cells |
| C. | Bins |
| D. | Boxes |
| Answer» E. | |
| 7. |
In stem-and-leaf plot, the measure of variability is _____________ |
| A. | IQR |
| B. | Mean |
| C. | Median |
| D. | Third quartile |
| Answer» B. Mean | |
| 8. |
IQR is defined as ____________ |
| A. | difference between fourth and first quartile |
| B. | difference between fourth and third quartile |
| C. | difference between third and first quartile |
| D. | difference between second and first quartile |
| Answer» D. difference between second and first quartile | |
| 9. |
Which of these shows the ordered Stem-and-Leaf Plot? |
| A. | Stems arranged by magnitude |
| B. | Stems not arranged by magnitude |
| C. | Stems and the leaves, both arranged by magnitude |
| D. | Neither stems nor leaves are arranged by magnitude |
| Answer» D. Neither stems nor leaves are arranged by magnitude | |