Answer:
0.17189
0.3504
Step-by-step explanation:
For a fair coin ; p = 0.5
1 - p = 0.5
P(x < 4) = p(x = 0) + p(x =1) + p(x = 2) + p(x = 3)
Recall:
P(x =x) = nCx * p^x * (1 - p)^(n - x)
Using a calculator to save time:
P(x <4) = 0.00098 + 0.00977 + 0.04395 + 0.11719
P(x < 4) = 0.17189
For a unfair coin :
p = 0.3 ; 1 - p = 1 - 0. 3 = 0.7
P(x ≥ 4) = p(x=4)+p(x =5)+p(x=6)+p(x=7)+p(x=8)+p(x=9) +P(x=10)
Recall:
P(x =x) = nCx * p^x * (1 - p)^(n - x)
Using a calculator to save time:
P(x ≥4) = 0.3504
Step-by-step explanation:
Substitution
substitute -3-5 into y
it becomes -3-5=6x+4
solve the equation to find the answer for X
then substitute the value of X you found again into the equation to find Y
Answer: slope = -1/2
Step-by-step explanation:
points: (-10,7) and (2,1)
slope (m) = (y2 - y1) / (x2 - x1)
m = 1 - 7 / 2 - -10 = -6/12 = -1/2
slope (m) = -1/2
Hello :
<span>f(x) = –4x – 2 and g(x) = 2x, what is (f · g)(x)?
</span>(f · g)(x) = 2x(-4x-2) = -8x² -4x
Answer:
the answer is d.
Step-by-step explanation:
Just plug each value in the <em>x </em>column into the dependent variable equation and see if the dependent variable value is true.