answer.
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
IrinaVladis [17]
2 years ago
4

Emily wants to determine the relationship between the number of people in a household (x) and the last 4 digits of their phone n

umber (y). She randomly selects 100 households in her town and examines the data. What is the best estimate of the correlation coefficient between x and y?
A. -0.5 B. 0 C. 0.5 D. 1
Mathematics
1 answer:
s344n2d4d5 [400]2 years ago
7 0

Answer:

0.5

Step-by-step explanation:

there may be some relationship

there can't be a negative probability

probably not 0, there could be something

probably not a complete correlation of 1

You might be interested in
Karl drove 617.3 miles. For each gallon of gas the car can travel 41 miles.Select a reasonable estimate of the number of gallons
zaharov [31]
Time for fractions!!!

I’m going to set a rate of miles per gallon and then cross multiply to get me answer.

41miles/gallon = 617.3/xgallons

617.3 multiplied by 1 and then divided by 41 = about 15.05 gallons

A reasonable estimate then is 15 and a half gallons, because rather than measuring down to the hundredths, the next closest and reasonable measurement is 15 and a half or under.

Comment if you don’t understand and I’ll try to help.

5 0
2 years ago
The Chang's neighbor owns a ready-mix company. The company receives an order for 12.5 cubic yards of concrete. This mixture of c
ella [17]
The quantities in the proportion you give add to 16 pounds, of which 2 pounds are cement. That is, cement constitutes 1/8 of the total weight.

For each yard of concrete, 4000 lb/8 = 500 lb of cement are used.

For 12.5 yards of concrete, 12.5 * 500 = 6,250 pounds of cement will be used.

_____
"yard" in this case is shorthand for "cubic yard".
3 0
2 years ago
Match the measurable quantity given by its formula with the appropriate unit(s)
lys-0071 [83]
Umm I think you have to edit the quest because I don’t understand it umm
5 0
2 years ago
Read 2 more answers
A bulletin board can be covered completely by 30 square pieces of paper without any gaps or overlaps if each piece of paper has
34kurt

Answer:

The area of the bulletin board is 30 square foot.

Step-by-step explanation:

A bulletin board can be covered completely by 30 square pieces of paper without any gaps or overlaps.

If each piece of paper has side length of 1 foot so the area of each paper is 1 ft x 1 ft = 1 square foot.

There are 30 pieces of paper needed to completely cover the bulletin board, so 30 pcs of paper with an area of 1 square foot is equal to 30 square feet. The area of the bulletin board is 30 square foot.

4 0
2 years ago
Lyn invested $7,000 into a investment paying 3% interest, compounded semi-annually, twice a year. After five years, how much wou
gayaneshka [121]

Answer:

Option B.) $8,123.79

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=5\ years\\ P=\$7,000\\ r=0.03\\n=2  

substitute in the formula above  

A=\$7,000(1+\frac{0.03}{2})^{2*5}  

A=\$7,000(1.015)^{10}=\$8,123.79  

3 0
2 years ago
Other questions:
  • Chelsea made monthly payments for four years before her $13,440 loan was paid off. The loan had an interest rate of 5.86%, compo
    14·2 answers
  • If cos 65 degree +cos 55 degree = cos θ, find θ in radians
    10·1 answer
  • Between two tenths of a mile will the second relay exchange occur? Explain.
    8·2 answers
  • Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 girls and boys in seventh grade. W
    7·2 answers
  • Jordan and Ellen recycle cans. Jordan recycles 7 cans for every 12 cans Ellen recycles. Last week, Jordan
    11·2 answers
  • Arc AB is One-sixth of the circumference of a circle. What is the radian measure of the central angle? StartFraction pi over 6 E
    10·2 answers
  • A movie theater sells popcorn in bags of different sizes. The table shows the volume of popcorn and the price of the bag.
    8·1 answer
  • Yoku is putting on sunscreen. He uses 2\text{ ml}2 ml2, start text, space, m, l, end text to cover 50\text{ cm}^250 cm 2 50, sta
    10·2 answers
  • Mimi bought some fabric for a sewing project. The fabric cost $15.40 per meter. She bought 250 centimeters of fabric. How much d
    15·1 answer
  • Predict how much money can be saved without having a negative actual net income. Monthly Budget Budgeted Amount Actual Amount In
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!