Answer:
y = -2x + 7/6
Step-by-step explanation:
y-2/3=-2(x-1/4)
Distribute the -2
y-2/3=-2x+ 2/4
y - 2/3 = -2x + 1/2
Add 2/3 to each side
y - 2/3 + 2/3 = -2x + 1/2 + 2/3
Get a common denominator
y = -2x + 3/6 + 4/6
y = -2x + 7/6
Answer:
The right solution is:
(a) 0.8849
(b) 12.28%
(c) 4.9935
(d) 28004
Step-by-step explanation:
Given:
Mean,
= 4.5
Standard deviation,
= 0.3
(a)
P(x > 4.14)
As we know,
⇒ 

then,
⇒ 
(b)
P(4.8 < x < 5.04)
= 
= 
= 
= 
= 
or,
=
(%)
(c)
P(x > x) = 0.05
z value will be,
= 1.645
⇒ 

(d)
P(x < 5.01)
⇒ 


P(z < 1.70) = 0.9554
⇒ 

It would be equal to 52/65 = 4/5