MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Mathematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A pie chart is to be drawn for representing the following data Items of expenditure Number of families Education 150 Food and clothing 400 House rent 40 Electricity 250 Miscellaneous 160 The value of the central angle for food and clothing would be |
| A. | 90° |
| B. | 2.8° |
| C. | 150° |
| D. | 144° |
| Answer» E. | |
| 2. |
The following data gives the distribution of height of students Height (in cm) 160 150 152 161 156 154 155 Number of students 12 8 4 4 3 3 7 The median of the distribution is[AMU 1994] |
| A. | 154 |
| B. | 155 |
| C. | 160 |
| D. | 161 |
| Answer» C. 160 | |
| 3. |
The average of n numbers \[{{x}_{1}},\,{{x}_{2}},\,{{x}_{3}},\,......,\,{{x}_{n}}\] is M. If \[{{x}_{n}}\] is replaced by \[{x}'\], then new average is [DCE 2000] |
| A. | \[M-{{x}_{n}}+{x}'\] |
| B. | \[\frac{nM-{{x}_{n}}+{x}'}{n}\] |
| C. | \[\frac{(n-1)M+{x}'}{n}\] |
| D. | \[\frac{M-{{x}_{n}}+{x}'}{n}\] |
| Answer» C. \[\frac{(n-1)M+{x}'}{n}\] | |