Answer: 24 °C
Step-by-step explanation:
Mean = [tex]\frac{\text{Sum of n observations}}{n}[/tex]
Given: Mean room temperature from Monday to Saturday = 25°C
Sum of temperature from Monday to Saturday = 6 x 25°C [Total 6 days from Monday to Saturday]
= 150°C
Mean room temperature of Saturday and Sunday = 28°C
Sum of temperature of Saturday and Sunday = 2 x28°C
=56 °C
Sum of temperature from Monday to Sunday = 7 x 26°C
= 182 °C
Room temperature on Saturday = 150°C + 56 °C - 182 °C
= 24 °C
Hence, the room temperature on Saturday = 24 °C
