1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
boyakko [2]
3 years ago
7

Which phrase best describes the relationship indicates by the scatter plotting?​

Mathematics
1 answer:
Inga [223]3 years ago
8 0

Answer:B

Step-by-step explanation:

You might be interested in
You have a bag with 30 fireballs and another bag with 42 jolly ranchers. For a party, you want to repackage the candy into small
Lady_Fox [76]
ANSWER: 13




I just added and the dividend lol
4 0
3 years ago
Read 2 more answers
The probability density function of the time to failure of an electronic component in a copier (in hours) is f(x) e^-x/1074 /107
love history [14]
Can u add the picture please?? If u don’t mind
4 0
2 years ago
Ice cream usually comes in 1.5-quart boxes (48 fluid ounces), and ice cream scoops hold about 2 ounces. However, there is some v
Troyanec [42]

Answer:

(a) The expected value and standard deviation of the amount of ice cream served at the party are 54 ounces and 1.25 ounces respectively.

(b) The expected value and standard deviation of the amount of ice cream left in the box after scooping out one scoop are 46 ounces and 1.031 ounces respectively.

(c) Because the variance of each variable is dependent on the other.

Step-by-step explanation:

The random variable <em>X</em> and <em>Y</em> are defined as follows:

<em>X</em> = amount of ice cream in the box

<em>Y</em> = amount of ice cream scooped out

The information provided is:

E (X) = 48

SD (X) = 1

V (X) = 1

E (Y) = 2

SD (Y) = 0.25

V (Y) = 0.0625

(a)

The total amount of ice-cream served at the party can be expressed as:

<em>X</em> + 3<em>Y</em>.

Compute the expected value of (<em>X</em> + 3<em>Y</em>) as follows:

E(X+3Y)=E(X)+3E(Y)\\= 48+(3\times2)\\=48+6\\=54

Compute the variance of (<em>X</em> + 3<em>Y</em>) as follows:

V(X+3Y) = V (X)+3^{2}V(Y)+2\times 3Cov (X,Y)\\=1+(9\times0.0625)+0\\=1.5625

Then the standard deviation of (<em>X</em> + 3<em>Y</em>) is:

SD(X + 3Y) =\sqrt{V(X + 3Y)}\\\sqrt{1.5625}\\=1.25

Thus, the expected value and standard deviation of the amount of ice cream served at the party are 54 ounces and 1.25 ounces respectively.

(b)

The amount of ice-cream left in the box after scooping out one scoop is represented as follows:

<em>X</em> - <em>Y</em>.

Compute the expected value of (<em>X</em> - <em>Y</em>) as follows:

E(X-Y)=E(X)-E(Y)\\=48-2\\=46

Compute the variance of (<em>X</em> - <em>Y</em>) as follows:

V(X - Y) =V(X)+V(Y)-2Cov(X,Y)\\=1+0.0625-0\\=1.0625

Then the standard deviation of (<em>X</em> - <em>Y</em>) is:

SD(X-Y) =\sqrt{V(X -Y)}\\\sqrt{1.0625}\\=1.031

Thus, the expected value and standard deviation of the amount of ice cream left in the box after scooping out one scoop are 46 ounces and 1.031 ounces respectively.

(c)

The variance of the sum or difference of two variables is computed by adding the individual variances. This is because the variance of each variable is dependent on the others.

7 0
3 years ago
True or false? In a proof, every new statement in the first column must be justified by a reason in the second column.
saul85 [17]
False because sometimes the other column can be blank
6 0
3 years ago
Read 2 more answers
Which literal equations are equivalent to B= a/h A. H=BA B. h= A/B c. A= BH D. A=b/h
OLga [1]
B=A/H means B is equal to A divided by H. If you wanted to find H you would have to multiply both sides by A which would be H=BA. If you wanted to find A you would multiply both sides by H which would be A=BH. Which means A and C are equivelent to B=A/H.
6 0
3 years ago
Other questions:
  • What is the equation in point-slope form if a line that passes through points (3,-5) and (-8,4)?
    5·1 answer
  • What is the answer to 72/80 - 13/20
    6·1 answer
  • Calculate the value of 4×8-3÷5
    8·2 answers
  • Rearrange the following equation to solve for x. y=1/2x+10
    13·1 answer
  • What is the slope of a line that is perpendicular to the line represented by the equation y = -2/5 x+ 4/5
    6·1 answer
  • Given an array A = [a1, a2, . . . , an] of nonnegative integers, consider the following problems: 1 P Partition: Determine wheth
    5·1 answer
  • Apply the distribution
    8·1 answer
  • Ailani draws a map of her local town. She places the town hall at the origin of a coordinate plane and represents a lake
    15·2 answers
  • There are 31 coins of dimes and quarters. If the number of dimes is 5 more than the number of quarters, how many quarters are th
    13·1 answer
  • The product of 1/2 and 2/15 is a/an ________________.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!