Answer:
1. is 38.85km. 2. is 155.4km
Step-by-step explanation:
Given mean =122.3 and standard deviation =18.5
≈2.49
As a general rule z-scores lower than -1.96 or higher than 1.96 are considered unusual.
Since our z-score = 2.49>1.96 , it is unusual.
Hence correct option is 'C' = "2.49 ; unusual"
Answer:
hi
Step-by-step explanation:
since power is positive in above expression
we get result as positive too
(-3)^6 = 729
(-3)^4= 81
________________
<h2>
729 × 81 × (-3)</h2>
______ (-177,147) ______
Answer:
B
Step-by-step explanation: