A larger number is one less than five times a smaller number. The sum of
1 answer:
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Answer:
Step-by-step explanation:
Given that the housing market has recovered slowly from the economic crisis of 2008. Recently, in one large community, realtors randomly sampled 38 bids from potential buyers to estimate the average loss in home value.
s = sample std deviation = 3000
Sample mean = 9379
Sample size n = 38
df = 37
Std error of sample mean =
confidence interval 95% = Mean ± t critical * std error
=Mean ±1.687*486.66 = Mean ±821.003
=(8557.997, 10200.003)
a) If std deviation changes to 9000 instead of 3000, margin of error becomes 3 times
Hence 2463.008
b) The more the std deviation the more the width of confidence interval.
Answer:
Option A
Step-by-step explanation:
To find all missing sides of a right triangle we use the sine, cosine or tangent ratio as below,
sinθ =
cosθ =
tanθ =
Now we take an angle measuring 60°
sin(60°) =
y = 4√3
tan(60°) =
√3 =
x = 2√3
Therefore, Option A will be the correct option.
The perpendicular distance from Frank to the height of statue of Liberty is 306-5.5 = 300.5 ft .
And frank stand 400 feet away from the base of the statue , so base=400 feet
Since tangent function establish relationship between height and base, so we use tanhere.
So the correct option is the first option .