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
11Alexandr11 [23.1K]
2 years ago
8

Giovanna has two possible driving routes to her new workplace, and she is having a hard time figuring out which is faster. The f

irst route is shorter, but usually has more traffic than the second route. She decided to conduct a small study. Over a period of 555 weeks, she used the first route in the first half of the week (Monday, Tuesday, and Wednesday), and the second route in the second half of the week (Thursday and Friday). Each day she recorded how long it took her to get to work, and by the end of the 555 weeks she calculated the average driving duration for each route. What type of statistical study did Giovanna use? Choose 1 answer: Choose 1 answer: (Choice A) A Sample study (Choice B, Checked) B Experiment (Choice C) C Observational study Is the study appropriate for the statistical questions it's supposed to answer? Mark the most suitable choice. Choose 1 answer: Choose 1 answer: (Choice A) A No, because there was no randomization. (Choice B) B No, because she didn’t compare the two routes with a third, neutral route. (Choice C) C Yes, because it allows to compare between the driving durations in the two routes. (Choice D) D No, because she should’ve asked someone else to drive.
Mathematics
1 answer:
liubo4ka [24]2 years ago
4 0
The answer 2 this assignment is definitely A
You might be interested in
At smith’s Mountain Lake Boat Rentals, it cost $25 per hour to rent a pontoon boat, plus a one-time
sergey [27]

Answer:

Jones family paid a total of $139

Step-by-step explanation:

Smith's Mountain Lake Boat provides Rental services that can be expressed as follows;

Total cost=cost per hour×number of hours rented+one time cleaning deal

For Benael's family;

Benael family total cost=Cost per hour×number of hours rented+one-time cleaning deal

where;

Benael family total cost=$226.50

Cost per hour=$25

Number of hours rented=11 am-6:30 pm=7 hours 30 minutes=7.5 hours

One time cleaning deal=x

Replacing;

226.50=(25×7.5)+x

187.5+x=226.50

x=226.50-187.5

x=39

One time cleaning deal=$39

For Jones family;

Jones family total cost=Cost per hour×number of hours rented+one-time cleaning deal

where;

Cost per hour=$25

Number of hours rented=9 am-1 pm=4 hours

One time cleaning deal=$39

Replacing;

Jones family total cost=(25×4)+39

Jones family total cost=$139

Jones family paid a total of $139

4 0
2 years ago
Alice has a 4-inch by 5-inch photo of your school’s championship girls’ ice hockey team. To celebrate their recent
Pachacha [2.7K]

Alice should pick the enlarged-photo with dimensions of 8-inch by 10-inch.

Step-by-step explanation:

Step 1:

In order for a part of the photo to not be cut off, the enlarged photo's dimensions should be of a constant ratio with the original photo's dimensions.

We divide the dimensions of the enlarged-photo with the dimensions of the original photo to check which has a constant ratio.

Step 2:

The original photo was a 4-inch by 5-inch photo.

Option 1 is 7-inch by 9-inch, so the ratios are

\frac{7}{4} = 1.75, \frac{9}{5} = 1.8. The ratios are different so this cannot be the enlarged photo's dimensions.

Option 2 is 8-inch by 10-inch, so the ratios are

\frac{8}{4} = 2, \frac{10}{5} = 2. The ratios are the same so this can be the enlarged photo's dimensions.

Option 3 is 12-inch by 16-inch, so the ratios are

\frac{12}{4} = 3, \frac{16}{5} = 3.2. The ratios are different so this cannot be the enlarged photo's dimensions.

So the enlarged-photo with dimensions of 8-inch by 10-inch should be picked.

7 0
2 years ago
Van is 75% than kieth .if van's heightt increasess by 40% while kieth's increases only by 25%, by what percent is van taller tha
Lilit [14]
I think there is a lack of information with regards to the question posted above. This may be the complete question:

Van is 75% taller than Keith. If Van's height increases by 40% while Kieth's increases only by 25%, by what percent is Van taller than Kieth now? 

We put Van at 175 and Kieth at 100 since Van is 75% taller than Keith.
When Kieth's height increased at 25%, he is now 125
When Van's height increased at 40%, he is now 245

245-125=120 and

<span><span><span>120/125</span>= .96 = 96%

The answer is 96%. I hope this helps.</span></span>
3 0
2 years ago
olivia has a shoebox shaped like a rectangular prism. She decorates 4 faces of the box, leaving the top and bottom without decor
Art [367]

Answer:

440 inches

Step-by-step explanation:

bruh thats too much work

8 0
2 years ago
Read 2 more answers
Farhan has three pieces of rope with lengths of 140cm, 168cm and 210cm. He wishes to cut all the three pieces of ropes into smal
kap26 [50]

Answer:

The greatest possible length is 14 cm.

The total number of smaller pieces is 37.

Step-by-step explanation:

The greatest common factor of these three numbers is 14.

Total number of smaller pieces = 10+12+15 = 37

Best Regards!

3 0
2 years ago
Other questions:
  • the area of the hartstein's kitchen is 182 square feet. this is 20% of the area of the first floor of their house. let f represe
    11·1 answer
  • Part a
    15·1 answer
  • Solve x2 + 12x = –11 by completing the square. Which is the solution set of the equation? {–11, –1} {–11, 1} {11, –1} {11, 1} ,
    10·2 answers
  • Describe the steps you used to solve the equation and find the amount of Carrie’s allowance. Linear equation:  1 4 a + 1 3 a + 8
    6·2 answers
  • Melissa owns a credit card with a 8.9% APR that calculates interest using the ADB excluding new purchases method. The balance af
    12·1 answer
  • Given that Ray E B bisects ∠CEA, which statements must be true? Select three options. m∠CEA = 90° m∠CEF = m∠CEA + m∠BEF m∠CEB =
    12·2 answers
  • Michael earns $21 per hour and works 40 hours per week. How many overtime hours would he have to worky in a week for his time-an
    7·1 answer
  • The value, V(m), of a comic book m must be months after publication has an average rate of change of -0.04 between m=36 and m=60
    5·1 answer
  • A committee at the College Board has been asked to study the SAT math scores for students in Pennsylvania and Ohio. A sample of
    7·1 answer
  • You have at most $3.65 to make copies for a school project. Each copy costs $0.25. Write and solve an inequality that represents
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!