Answer: Well since the ratio is 9:7 for red to blue well transfer that first by finding out the blue if there are 117 xc=9:7x13 would be 117 red and 7x13=91 blue so the new ratio is 117:91.
So now we add which I'm sure you can do,
117
+
91
_____
208 <-<u><em>your answer </em></u>
Answer:
a. 0.1917
b. 0.0914
d. 0.1580
Step-by-step explanation:
(a)


Mean,
= 0.375 -0.1833 = 0.1917
(b) sample prop ? Show your work and label each value.
Mean, = = 0.1917
Standard deviation = 
Standard deviation =
Standard deviation = 0.0914
(c)
Normality condition:
np ≥ 10 and n(1-p) ≥ 10
Both the samples satisfy the normality condition.
(d)
The probability is obtained by calculating the z score,

= 1.0029
P(z > 1.0029) = 1 - P(z ≤ 1.0029)
The probability is obtained from the z distribution table,
P(Z > 1.0029) = 1 - 0.8420 = 0.1580
<span>So ball A (100 feet) will hit the ground after 2.49 seconds and ball B (75 feet) after 3.15 seconds</span>
This is a two step equation. What we want to do is get x by itself.
We will add .3 to both sides:
0.4x=-0.11
We will now divide both sides by .4
X=-0.275