What we can say with a good deal of certainty is that our sample is biased towards the higher spectrum and that the real value of the mean for our population is lower than the obtained value of our sample. If this is true, we should expect for the standard deviation to be higher than in the population.
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Step-by-step explanation:
tan30° = Height of person / (Distance away from river bank + river's width) = 1/√3.
Therefore 1.6m / (2m + x) = 1/√3
By cross multiplication, 1.6√3 = 2 + x.
Hence, x ≈ 0.77m.
Answer:
Option c. $2,250
Step-by-step explanation:
we know that
The minimum household income needed for the given budget, must be equal at least to the sum of all categories values of the monthly budget
so
Find the sum of all categories values

therefore
The minimum household income needed for this budget is $2,250