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Ungrouped Frequency Distribution Table

The daily max...

Question

The daily maximum temperature (in degree Celsius) recorded in a certain city during the month of November are as follows:
$24.5, 25.8, 25.6, 20.7, 21.8, 20.5, 20.6, 20.9, 22.3, 22.7, 23.1, 22.8, 22.9, 21.7, 21.3, 20.5 ., 20.9, 23.1, 22.4, 21.5, 22.7, 22.8, 22.0, 23.9, 24.7, 22.8, 23.8, 24.6, 21.1, 23.9 .$
Represent them as a frequency distribution table with class size $1 ° C$ .

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Solution

Organize the data in the frequency distribution table:
Class Interval Frequency
$20 - 21$ $6$
$21 - 22$ $5$
$22 - 23$ $9$
$23 - 24$ $5$
$24 - 25$ $3$
$25 - 26$ $2$
Therefore, the table of frequency distribution is made.

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Q. The daily maximum temperatures (in degree celsius) recorded in a certain city during the month of November are as follows:

25.8, 24.5, 25.6, 20.7, 21.8, 20.5, 20.6, 20.9, 22.3, 22.7, 23.1, 22.8, 22.9, 21.7, 21.3, 20.5, 20.9, 23.1, 22.4, 21.5, 22.7, 22.8, 22.0, 23.9, 24.7, 22.8, 23.8, 24.6, 23.9, 21.1

Represent them as a frequency distribution table with class size 1°C.

Q. The daily maximum temperature in degree celcius of a city for a certain month was recorded as follows. Choosing suitable classes, prepare a grouped frequency distribution table.

\begin{matrix} 30.6, & 31.5, & 32.9, & 33.2, & 31.6, & 30.3, & 34.7, & 35.0, & 32.5, & 33.5, \\ 34.2, & 36.9, & 32.1, & 31.0, & 29.2, & 29.0, & 28.1, & 28.5, & 32.9, & 29.3, \\ 30.2, & 31.4, & 30.0, & 32.0, & 32.2, & 33.0, & 32.5, & 33.9, & 34.5, & 35.5 . \end{matrix}

Q. 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.

Q. 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.

Q. The class marks of a frequency distribution are 15, 20, 25, 30, .. . The class corresponding to the class marks 20 is
(a) 12.5−17.5
(b) 17.5−22.5
(c) 18.5−21.5
(d) 19.5−20.5

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