NDA Math Statistics
Show Para
For the next three (03) items that follow:
The number of telephone calls received in 245 successive one minute intervals at an exchange is given below in the following frequency distribution.
The number of telephone calls received in 245 successive one minute intervals at an exchange is given below in the following frequency distribution.
| Number of calls | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|
| Frequency | 14 | 21 | 25 | 43 | 51 | 40 | 39 | 12 |
[NDA I 2014]
© examsiri.com
Question : 93 of 100
Marks:
+1,
-0
What is the mean of the distribution ?
[NDA I 2014]
Go to Question: