MATHEMATICS HIGH SCHOOL

Which of the following distributions describes the ratio of two variances drawn from the same normal population? a. F statistic b. Student’s t-test c. Chi-square d. Normal

Answers

Answer 1
Answer:

Answer:

The distribution that describes the ratio of two variances drawn from the same normal population is a) F statistic.
Answer 2
Answer:

Answer: THE ANSWER IS A (F STATISTIC)

Step-by-step explanation:

THE DISTRUBUTION THAT DESCRIBES THE RATIO OF TWO VARIANCE DRAWN FROM THE SAME NORMAL POPULATION IS A) f statistic

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A person leaves home at 8.00 a.m. and drives to a destination at a rate of 40 mph. The person returns at a rate of 25 mph and arrives at 2:30 p.m. If x represents how far it is to the destination, then which of the following expressions represents the amount of time to make the return trip?25x
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x/25

Answers


time = distance / speed

distance= x 
speed = 25 mph

time = x/25

You need to put your reindeer, Rudy, Ezekiel, Gloopin, Bloopin, and Prancer, in a single-file line to pull your sleigh. However, Bloopin and Rudy are fighting, so you have to keep them apart, or they won't fly. How many ways can you arrange your reindeer?

Answers

If the reindeer do not fight, there are 5!=120 ways to line them up in a straight line.
Out of these, Bloopin and Rudy are together in 4!=24 times.  Similarly Rudy and Bloopin will be together 4!=24 times.  So the number of ways they are not together is 120-24-24=72 ways.

If Bloopin and Rudy are fighting, the reindeer do not fight, there are 72 ways that you can arrange your reindeer.

What are permutations?

The different arrangements which can be made out of a given number of objects by taking out some or all at a time are called permutations.

If Bloopin and Rudy are fighting, the reindeer do not fight,

then there are 5! = 120 ways

Out of these, Bloopin and Rudy are together in 4! = 24 times.  

Similarly, Rudy and Bloopin will be together 4! = 24 times.  

So the number of ways they are not together

120-24-24 = 72 ways.

Learn more about permutations;

brainly.com/question/1216161

Divide and express the result in standard form. 8/7-i

Answers

i=√(-1)\to i^2=-1\ (i-the\ imaginary\ unit)\n----------------------\n\n(8)/(7-i)\n\nuse\ (a-b)(a+b)=a^2-b^2\n\n(8)/(7-i)\cdot(7+i)/(7+i)=(56+8i)/(7^2-i^2)=(56+8i)/(49-(-1))=(56+8i)/(49+1)=(56+8i)/(50)=(56)/(50)+(8)/(50)i\n\n=\boxed{(28)/(25)+(4)/(25)i}
assuming the problem is 8/(7-i) you would multiply the fraction by (7+i)/(7+i)
This would then simplify to 8(7+i)/50 which can be simplified down to 4(7+i)/25

The Mitchells are renting a boat for the day. It costs $100, plus $20 for each hour. They have to pay for a whole hour even if they are not out there for a whole hour. For example if they boat for 3 and a half hours, they have to pay for 4 hours. They don't want to spend more than $250 for the day. How many hours can they boat? Write an inequality and solve.A)100 + 20x ≤ 250. They can boat for 7 hours.

B)100 + 20x ≥ 250. They can boat for 8 hours.

C)100 + 20x ≤ 250. They can boat for 8 hours.

D)100 + 20x ≥ 250. They can boat for 7 hours.

Answers

A)100 + 20x ≤ 250. They can boat for 7 hours.

Think of this logically. They want to spend less than $250 on the boat, so it can't be more than.

100+20*(7)=240
It would have to be A because B means they can spend over 250 dollars. C would be 260, which is over 250 and D means they could use the boat for more time, costing more money.

How do you figure out this word problem: Peter has 6 sweaters, 4 pairs of jeans and 3 pairs of shoes. How many outfits can Peter make?

Answers

\underbrace{6}_(sweaters)*\underbrace{4}_(jeans)*\underbrace{3}_(shoes)=\underbrace{72}_(outfits)
You multiply Peter's 6 sweaters by is 4 pairs of jeans and 3 pairs of shoes.
6x4x3=73
:P

Sams coordinates are (2,4) and the theaters coordinates are (5,-2.5) on a grid each unit represents 1 kilometer. Describe Sam's location relative to the theater.

Answers

The theater are relative to Sam 6.5 kilometers south, and 3 kilometers west.

Answer:

The theater are relative to Sam 6.5 kilometers south, and 3 kilometers west.

Step-by-step explanation:
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