Answer:22
Step-by-step explanation:
22
Answer:
125 feet below sea level or -125
Step-by-step explanation:
Answer:
the answer would be 7x-8. i hope this helped. :).
Step-by-step explanation:
yepppp
Answer:
2/7 = 4/14
3:3 = 6:6
1/2 = 2/4
2.5:6 = 5:12
Step-by-step explanation:
For the first one, we can multiply the numerator and denominator of the fraction by 2 to get an equivalent fraction which is 4/14
For the second one we can multiply each side by 2 to get the ratio of 6:6
For the third one we can multiply the numerator and denominator by 2 to get 2/4
For the last one we can multiply each side by 2 to get 5:12
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 ≥ ![[Z_\alpha_/_2 * (\frac{\sigma}{ME})]^2](https://tex.z-dn.net/?f=%20%5BZ_%5Calpha_%2F_2%20%2A%20%28%5Cfrac%7B%5Csigma%7D%7BME%7D%29%5D%5E2%20)
n ≥ ![[1.64 * (\frac{475}{100})]^2](https://tex.z-dn.net/?f=%5B1.64%20%2A%20%28%5Cfrac%7B475%7D%7B100%7D%29%5D%5E2)
n ≥ 60.68
≈ 61
Minimun sample size,n = 61
