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Question
The daily minimum temperatures in degrees Celsius recorded in a certain Arctic region are as follows:
−12.5, −10.8, −18.6, −8.4, −10.8, −4.2, −4.8, −6.7, −13.2, −11.8, −2.3, 1.2, 2.6, 0, −2.4, 0, 3.2, 2.7, 3.4, 0, −2.4, −2.4, 0, 3.2, 2.7, 3.4, 0, −2.4, −5.8, −8.9, −14.6, −12.3, −11.5, −7.8, −2.9
Represent them as frequency distribution table taking − 19.9 to − 15 as the first class interval.
Solution
The frequency table of the daily minimum temperatures is given below:
| Temperature | Tally Marks | Frequency |
| -19.9 to -15 | | | 1 |
| -14.9 to-10 | 8 | |
| -9.9 to -5 | 5 | |
| -4.9 to 0 | 13 | |
| 0.1 to 5 | 8 |
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