Te difference of 2 standard deviation of a population n1 & n2 is given by the formula:
sigma (difference)=√(sigma1/n1 + sigma2/n2), Plug:
sigma(d)= √(49/100 + 36/50)
Sigma(d=difference) =1.1
<span>What is r = wp, for p
</span>r = wp...divide both sides by w
so then p = r/w
Your answer is C because the signs are compatible.
Answer:

Step-by-step explanation:
< o = 125
=> <o = <q (vertical angles are equal)
So,
=> <q = 125
Now,
<q = <z (Corresponding angles are equal)
So,
<z = 125 degrees
Answer:
lower bound = 90 - 10 = 80 cm
upper bound = 90 + 10 = 100 cm
lower bound d = 1500 x 80 cm = 120,000 cm
upper bound d = 1500 x 100 cm = 150,000 cm