I’m not sure sorry also it past due
I think that the answer would be D
Answer:
See explanation below
<u>Step-by-step explanation:</u>
range = 2200 - 300 = 1900
To find standard deviation, we have:
standard deviation = range/4 =
= 475
The range rule of thumb estimate for the standard deviation is 475
Given:
Standard deviation,
= 475
Margin of Error, ME = 100
= 1 - 0.90 = 0.10
Za/2 = Z0.05 = 1.64
Find sample size, n:
n ≥
n ≥
n ≥ 60.68
≈ 61
Minimun sample size,n = 61
Answer:
In the year 2010
Step-by-step explanation:
we have

where
A is the population in thousands
t is the number of years since 1998
so
For A=297 thousands
substitute and solve for t

simplify

Apply ln both sides
![ln(1.485)=ln[e^{0.033t}]](https://tex.z-dn.net/?f=ln%281.485%29%3Dln%5Be%5E%7B0.033t%7D%5D)

Remember that




1998+12=2010
Answer:
x=21.7
Step-by-step explanation:
cos ø=adjacent/hypotenuse
cos37°=17.3/hypotenuse
hypotenuse=17.3/cos 37°
hypotenuse=21.66