MATHEMATICS MIDDLE SCHOOL

Explain why P(A|D) and P(D|A) from the table below are not equal.
Explain why P(A|D) and P(D|A) from the table below are - 1

Answers

Answer 1
Answer:

Answer:

The two conditional probabilities are not equal because each has different given events. P(A|D) has event D as its given event, resulting in 2/10 for a probability. P(D|A) has event A as its given event, resulting in 2/8 for a probability.

Other part is:

different given events

P(A|D) equals 2/10

P(D|A) equals 2/8
Answer 2
Answer: because they are in different positions which make them different answers/number

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You buy 12 pencils for $15.36 find the unit price in dollars per pencil

Answers

[tex] \frac{15.36}{12} = $1.28
$15.36 is the cost for 12 pencils.

Unit price in $/pencil =  $15.36 / 12 pencils =  $1.28 / pencil    

How would I find the area?

Answers

A=1/2<a+b>×h
  =1/2<10+17>×10
 =1/2<27>×10
 =1/2×27×10
 =135m²

Lunch A survey showed that 30% of students bring their lunch to school. The survey polled 300 students. How many of the 300 students do not bring their lunch to school?

Answers

The number of students who do not bring lunch will be 210.

What is the percentage?

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.

Lunch A survey showed that 30% of students bring their lunch to school. The survey polled 300 students. Then the percentage of students who do not bring lunch will be

⇒ 100% - 30%

⇒ 70%

Let x be the number of students who do not bring lunch. Then we have

x = 70% of 300

x = 0.70 × 300

x = 210

The number of students who do not bring lunch will be 210.

More about the percentage link is given below.

brainly.com/question/8011401

#SPJ2
Turn 30% into a decimal and then multiply it by 300.

300 x .3 = 90

you want to build the rectangular dog pen with 20 yards of fencing against your house which is 20 yards wide. which dimensions will give you the most space for your dog?

Answers

ok so your house is 20 yards wide, that akes care of one side
if you have only 20 yards of fencing then hmm
the way to max the space is to make all side equal

20 is for 3 sides
20/3=6.6666666 per side
assuming you don't need to fence the house side

the amount of fencing is 6 and 2/3 by 6 and 2/3 by 6 and 2/3 yards
the correct answer is 6 2/3 hope this helps 

What precent does this change $16 to $4

Answers

Answer:

Percentage change=75% .

Step-by-step explanation:

Given : $16 to $4    

To find:  What is the percent change .

Solution: We have given that   $16 to $4  .

Change = final value - initial value .

Change   = $16 - $4 

                  =$12

percentage change = (change)/(original value) *100

                               =    (12)/(16) *100

On dividing both number by 4

percentage change=. (3)/(4) *100

percentage change=. [tex]\frac{300}{4} .

percentage change=75% .

Therefore, percentage change=75% .
The percent change is 25%,because 4 divided by 16 is 0.25,and to convert a decimal to a percent,I multiplied 0.25 by 100,and the product,(the answer when 2 or more numbers are multiplied)was 25 and then i added the percent sign to 25,and so the percentage is 25%

Suppose k and l are fixed numbers. Since the following are lines with different slopes, the graphs of the two lines y=18x+k and y=5x+l must always intersect somewhere. Find a formula, using k and l, for the intersection point. Please say how you found the formula. Thanks.

Answers

answer:

Contd.



Explanation:

We will use the following well-known

Result : The eqn. of a line l passing through the pt. of

intersection of the lines l1:a1+b1+c1=0andl2:a2x+b2y+c2=0 is of

the form

Result :
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