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PilotLPTM [1.2K]
2 years ago
12

What is the answer? 102,39,or 78

Mathematics
1 answer:
Anon25 [30]2 years ago
7 0
102 because it’s kind of like a 180 but not I’m direct form
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The joint probability mass function of XX and YY is given by p(1,1)=0p(2,1)=0.1p(3,1)=0.05p(1,2)=0.05p(2,2)=0.3p(3,2)=0.1p(1,3)=
inessss [21]

Answer:

P(Y=1|X=3)=0.125

Step-by-step explanation:

Given :

p(1,1)=0  

p(2,1)=0.1

p(3,1)=0.05

p(1,2)=0.05

p(2,2)=0.3

p(3,2)=0.1

p(1,3)=0.05

p(2,3)=0.1

p(3,3)=0.25

Now we are supposed to find the conditional mass function of Y given X=3 :  P(Y=1|X=3)

P(X=3) = P(X=3,Y=1)+P(X=3,Y=2) +P(X=3,Y=3)

P(X=3)=p(3,1) +p(3,2) +p(3,3)

P(X=3)=0.05+0.1+0.25=0.4

P(Y=1|X=3)=\frac{P(X=3,Y=1)}{P(X=3)} =\frac{p(3,1)}{P(X=3)}=\frac{0.05}{0.4}= 0.125

Hence P(Y=1|X=3)=0.125

8 0
3 years ago
a box of national brand cornflakes is $2.09 for 12 ounces in a box of store label cornflakes is $3.09 with 20 ounces find the un
hichkok12 [17]
2.09/12 = 0.174...rounds to 17 cents per oz
3.09/20 = 0.154..rounds to 15 cents per oz
8 0
3 years ago
When you multiply a function by -1, what is the effect on its graph?
Dafna1 [17]

9514 1404 393

Answer:

  B.  The graph flips over the x-axis

Step-by-step explanation:

When you plot the coordinate pair (x, y), you plot the point 'y' units above the x-axis. If you change the sign of that (multiply the function by -1), then the point becomes (x, -y), and is plotted 'y' units below the x-axis.

The graph flips over the x-axis.

__

Attached is an example of a function with its original graph (red) and the graph after being multiplied by -1 (blue). The blue graph is a reflection of the red graph across the x-axis.

5 0
2 years ago
How many whole servings of 3/4 cups are in 3 1/2 cups of ice cream?
Kisachek [45]
Well, what you're going to do is.. turn 3 1/2 into an irregular fraction.

3 = 6/2
we still have the initially 1/2 left so we will add that.
7/2

now we want to change it so that the denominator is equal to 4 so we multiply both top and bottom by 2

14/4

now we divide the 14 by 3 and you will get approximately 4. we will ignore the rest because it asks for whole servings and 3 only goes nicely into 14 4 times
6 0
3 years ago
Find the coefficient of x^4 in the expansion of (x−9)^8<br> Please I need help!!
alexdok [17]

Answer:

<u>4</u><u>5</u><u>9</u><u>2</u><u>7</u><u>0</u>

  • <u>is</u><u> </u><u>the</u><u> </u><u>coefficient</u>
5 0
2 years ago
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