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
frez [133]
3 years ago
12

In an area of the Great Plains, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (b

ushels per acre). Calculate the linear correlation coefficient. Round to three decimal places.
Rainfall (in inches), x 11.7 10 14.6 13.7 20 11.5 8.2 16.8 17.2
Yield (bushels per acre), y 54.5 50.2 62.8 63 86.4 53.2 35.9 80 82.8
Options:
A. 0.998
B. 0.900
C. 0.899
D. 0.981

Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0

Answer: D. 0.981

Step-by-step explanation:

Step 1: For the given data table on x^2

We square all values given to us

Step 2: we repeat Same for Y^2 table too.

Step 3: XY table we multiply x and y

Step 4: we make a summation of them all

Step 5: we input our summer value into our formula.

Step 6 : we arrive at our answer which is 0.981

You might be interested in
John and alisha randomly met at the local movie theater. what will affect their first impression of each other?
Vesna [10]
How they dress, What movie they buy, and what snacks you buy
7 0
3 years ago
Work out the circumference of this circle 9 m
san4es73 [151]
Can you please attach an image so i can answer? Let me know when you do that and i’ll be glad to help!
5 0
3 years ago
An isosceles trapezoid is a quadrilateral with two congruent legs and a pair of parallel bases. Prove the base angles of an isos
Firdavs [7]
Check the picture below.

now, we know that the slanted legs are congruent, since it's an isosceles trapezoid, we also know that the bases are the parallel sides, so, the "altitude" or distance from those bases are the same length, for each of those triangles in the picture.

now, the bases are parallel, that means the altitude segment is perpendicular to the base, the longest side at the bottom, so, we end up with a right-triangle that has a Hypotenuse and a Leg, equal to the other triangle's.

thus, by the HL theorem for right triangles, both of those triangles are congruent, and if the triangles are congruent, all their sides are also, including the ones on the base.

4 0
3 years ago
13. How many drinks are in a 2 oz martini made with 100 proof alcohol
pentagon [3]

Answer:

4 drinks.

Step-by-step explanation:

-One drink is defined as having one-half ounce of pure ethyl alcohol; each of the following is considered "one drink." *1 oz of 100 proof distilled spirits at 50% alcohol.

Drinks=\frac{2oz}{0.5oz}\\\\=4

Hence, 2 oz martine has 4 drinks

7 0
3 years ago
2,826 rounded to the nearest tenth
jasenka [17]

Answer:

2,826

Step-by-step explanation:

A tenth is the first place value after the decimal point

In this case, 2,826.<u>0</u>0

To round a number to the tenths place, we look at the hundredths place

If the number is 5 or more, we add 1 to the tenths place, and leave the numbers to the right 0's

If the number is 4 or less, we keep the number as it is in the tenths place, and leave the numbers to the right 0's

In this case, the hundredths place is a 0, which is less than 4, so we keep the 0 in the tenths place, and leave the to the right 0's.

Thus, our final answer is 2,826.

8 0
2 years ago
Other questions:
  • The point P(x, y) lies on the terminal side of an angle mc014-1.jpg = –60° in standard position. What are the signs of the value
    11·1 answer
  • How do you do the question of 50%of 50 in math like how would you solve it
    8·1 answer
  • You want to buy a pet iguana. You already have $12 and plan to save $9 per week. If w represent the number of weeks until you ha
    5·1 answer
  • Solve <br> X - 2/3 = 6 1/3
    6·1 answer
  • Work out the surface area of a cube of edge 2m
    11·1 answer
  • What do I do? Help me please I'm stuck
    6·1 answer
  • Which is greater than 4.026?<br><br> A. 4.020<br><br> B. 4.030<br><br> C. 4.021<br><br> D. 4.006
    13·2 answers
  • You skate at a rate of 12 feet per second. Your friend skates at a rate of 10 feet per seconds and has a head start of 20 feet.
    8·1 answer
  • A beagle puppy has long ears, like its parents. Which of the following best
    13·1 answer
  • Geometry question need explanation on finding the answer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!