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
malfutka [58]
3 years ago
7

MATH QUESTION HELP PLZ

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

Step-by-step explanation:

You have to first enter these values into a table.  You find that table on your calculator at "stat" then "edit".  In L1, enter all the x values, hitting "enter" after each entry.  Then arrow over to L2 and enter all the y values.  When you are done, hit "stat" again, then "calc" and choose 4 LinReg, then hit enter.  If you do not see the r and r-squared values, then you need to turn on your diagnostics.  To do this, hit 2nd, then 0 to pull up your catalog.  Hit the x^{-1} button and that brings up all the D's in your catalog.  Arrow down til you see "DiagnosticsOn" and hit enter.  Then hit enter again.  Go back to "stat", "calc", "4 LinReg" and hit either enter or calculate (it depends upon which calculator you have.  The TI 83 just needs the "enter" button, while the TI84 family requires that you scroll down to the word "calculate" and hit "enter").  Then when the linear regression equation comes up, you will see underneath it both the correlation coefficient (r) and the coefficient of determination (r-squared).  You should see that your r value is .84 for this data set.  Just so you know, r can be negative, but r-squared never will be.

You might be interested in
Can anyone help me with this?
-Dominant- [34]
A=60
B=52
C=152
I’ve attached my work on how I got these answers
Hope this helps!

7 0
3 years ago
Read 2 more answers
A card is selected randomly from a jar that contains 15 cards, numbered from 25 to 39. What is the probability that the card sel
VikaD [51]

Answer:

The probability that the card selected bears a number less than 34 is 0.3333.

Step-by-step explanation:

Let random variable <em>X</em> be defined as the number on the selected card.

There are <em>N</em> = 15 total cards.

The number on the cards are as follows:

S = {25, 26, 27,..., 38, 39}

The probability of an event, <em>E</em> is the ratio of the number of favorable outcomes to the total number of outcomes.

P(E)=\frac{n(E)}{N}

In this case we need to compute the probability that the card selected bears a number less than 34.

The favorable outcomes are:

<em>s</em> = {25, 36, 37, 38, 39}

<em>n</em> (X < 34) = 5

Compute the probability that the card selected bears a number less than 34 as follows:

P(X

                  =\frac{5}{15}\\\\=\frac{1}{3}\\\\=0.3333

Thus, the probability that the card selected bears a number less than 34 is 0.3333.

7 0
3 years ago
Preston's salary before taxes are taken out is p dollars. After taxes taken out, Preston's take home salary is t dollars. If p =
Karolina [17]

Answer:

After\ Tax = \frac{p}{1.25}

Step-by-step explanation:

Given:

Before\ Tax =\$ p

After\ Tax =\$ t

p = 1.25t

Required

Determine his after tax salary in terms of p

To do this, we simply make t the subject in p = 1.25t

Divide both sides by 1.25

\frac{p}{1.25} = \frac{1.25t}{1.25}

\frac{p}{1.25} = t

t = \frac{p}{1.25}

Substitute p/1.25 for t in After\ Tax =\$ t

After\ Tax = \frac{p}{1.25}

7 0
3 years ago
Lakita wants to go to trade school and study electronics for a two-year program. Her tuition and books will cost about $5,500 pe
tamaranim1 [39]

Answer:

$13,400

Step-by-step explanation:

<u>Given the following data;</u>

Tuition and book per year = $5,500

Transportation per month = $100

<u>In 2 years;</u>

Total tuition and book = $5,500 * 2 = $11,000

Total tuition and book cost = $11,000

Transportation;

There are 12 months in a year, in 2 years = 12 * 2 = 24 months.

Thus, total on transportation = $100 * 24 = $2,400

Total transportation cost = $2,400

Overall \; cost = Total \; tuition \; and \; book \; cost + Total \; transportation \; cost

Substituting into the above equation, we have;

Overall cost = $11,000 + $2,400

Overall cost = $13,400.

<em>Hence, Lakita's education will cost her $13,400 in total.</em>

6 0
2 years ago
jamie,sara,jasmine and guadalupe had 144 justin beiber stickers altogether. if they split them equally, how many stickers would
Angelina_Jolie [31]
So there is 4 people
144 divided by 4 is 36
7 0
3 years ago
Read 2 more answers
Other questions:
  • 10 Points If U Please Answer This
    6·1 answer
  • Is 16/14 equally to 64/60
    15·1 answer
  • Finding surface area if an triangular prism
    9·1 answer
  • Evaluate the expression below.<br> (8 - 7)- 4 + 3(-1)<br> 1<br> -7<br> -1<br> 7
    9·1 answer
  • !!!HELP PLEASE !!!!!
    8·1 answer
  • A human heart beats approximately 60 times per minute. If a man lives to the age of 90, how many times will his heart in his lif
    8·1 answer
  • Burton Bush wants to retire in Arizona when he is 80 years of age. Burton, who is now 55, believes he will need $400,000 to reti
    10·2 answers
  • How to multiply a whole number by a fraction like 4/6 x 4 etc .​
    14·1 answer
  • X=-9;y=4;z=8<br> -7z - 8y +5z
    9·1 answer
  • What is the length of the dotted line in the diagram below? Leave your answer in
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!