Question

Calculate the average minimum temperature and minimum humidity of a place from the given table (weather data of a week). Choose the coorect option of the first number represents average minimun tempereature and the second number represents average minimum humidity.

$\begin{array}{ccccc}Date& \text{Max.~Temp.}{}^{o}C& \text{Min.~Temp.}{}^{o}C& \text{Min.~Humidity(\%)}& \text{Max.~ Humidity(\%)}\\ 23-08-06& 36.2& 28& 54& 82\\ 24-08-06& 35.1& 27& 53& 84\\ 25-08-06& 37.4& 27& 54& 87\\ 26-08-06& 38& 24& 58& 83\\ 27-08-06& 37.2& 23& 52& 79\\ 28-08-06& 34.9& 22& 51& 72\\ 29-08-06& 35.5& 27& 52& 85\\ Average& 36.32& ?& ?& 81.71\end{array}$

• A. 24.2 and 53.4
• B. 25.4 and 53.4
• C. 23.3 and 56.8
• D. 23.3 and 54.6

Answer 1

The correct option is B

25.4 and 53.4

An average is the sum of the values of all the readings divided by the number of readings in the list. In mathematics and statistics, this is called the arithmetic mean (or average).

Therefore, total sum of minimum Temperatures = 28+27+27+24+23+22+27 = 178

Number of readings given = 7

Average Minimum Temperature =$\frac{TotalsumofminimumTemperatures}{Numberofreadings}=\frac{178}{7}\approx {25.4}^{o}C$

Total sum of Minimum Humidity readings = 54+53+54+58+52+51+52 = 374

Number of readings given = 7

Average Minimum Humidity = $\frac{TotalsumofMinimumHumidityReadings}{Numberofreadings}=\frac{374}{7}\approx {53.4}^{o}C$