Answer:
0.1527
Step-by-step explanation:
Given that a researcher wishes to conduct a study of the color preferences of new car buyers.
Suppose that 50% of this population prefers the color red
15 buyers are randomly selected
Let X be the no of buyers who prefer red.
X has exactly two outcomes red or non red.
Also each buyer is independent of the other
Hence X is binomial with p = 0.5 and n = 15
Required prob =The probability that exactly three-fifths of the buyers would prefer red
= P(X=9)
= 
=
Answer:
y=2.9
Step-by-step explanation:
3(2y - 0.3) = 19.4 - y
6y-0.9=19.4
6y+y-0.9=19.4
6y+y=19.4+0.9
7y=19.4+0.9
7y=20.3
7y/7=20.3/7 (divid each one by seven. that's what /7 means)
y=2.9
Answer:
Step-by-step explanation:
the ratio is 5:3:2
therefore, Ali receives 5x, Ben receives 3x and Carl receives 2x
Ben receives 60 $
so,
3x = 60
x = 60/3 = 20
Ali's share = 5x = 5*20
Ben's share = 60$
Carl's share = 2x = 2*20
therefore, Ali receives 100$, Ben receives 60$ and Carl receives 40$
so, the total money shared is 60$ + 40$ + 100$ = 200$
Step-by-step explanation:
Quotient of s and r is s/r
s/r to the 3rd power = (s/r)^3
Answer:
To the RIGHT
Step-by-step explanation:
The parabola will open right if the y^2 is positive and will open left if the y^2 is negative.
