Answer:
x=-1 y=4 (-1,4)
Step-by-step explanation:
If th<span>e equation y=1/3x is the boundary line for the inequality y>1/3 x, then the solution set is illustrated by shading the area ABOVE the line y=(1/3)x.</span>
Answer:
m<1=61
m<2=40
m<3=60
m<4=80
m<5=100
Step-by-step explanation:
180/3=60
180/9=20
20x2=40
20x4=80
20x3=60
59+60=119
180-119=61
180-80=100
Answer: it is definitely c. y=3x+2
Step-by-step explanation: solve the first equation and then plug in
With 10 integers available,

has PMF

We're interested in the statistics of the new random variable

. To do this, we need to know the PMF for

. This isn't too hard to find.

Since the PMF for

gives a value of

whenever

is an integer between 0 and 9, it follows that

must also be an integer for the PMF to give the identical value of

. This means

Now the mean (expectation) is


The variance would be




The standard deviation is the square root of the variance, so you have