Answer:
E
Explanation:
We are given, mean μ = 82°
standard deviation σ = 6°
For each of the options x, we will evaluate their respective z-scores given by
z-score = (x - μ)/σ
Hence, for 89.2, z = (89.2 -82) / 6 = 1.2
For 75.4, z = (75.4 - 82) / 6 = -1.1
For 79, z =(79 - 82) / 6 = -0.5
For 86.2, z = (86.2 - 82) / 6 = 0.7
For 95.8, z = (95.8 - 82) / 6 = 2.3
The z score of temperature greater than 2 and less than -2 are considered as unusual
This is the case with temperature 95.8°. Hence, the temperature will be considered unusual.
