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
kodGreya [7K]
3 years ago
11

1. An AP Statistics class starts a project to estimate the average number of hours a student at their high school sleeps per nig

ht. Their high school has 1200 students, and they take a sample of the first 120 students that arrive at school on a particular day. They ask each of the 120 students how many hours of sleep they got the night before and then calculate an average. Which of the following statements is an accurate description of the elements of this survey?
a. Population: the 120 students surveyed. Parameter of interest: the average number of hours a student at this high school sleeps per night.
b. Sample: the 1200 students of the school. Population: all high school students in the United States. Statistic: the average number of hours a student at this high school sleeps per night
c. Sample: the 120 students surveyed. Population: the 1200 students at the high school. Parameter of interest: the average number of hours a student at this high school sleeps per night.
d. Sample: the 120 students surveyed. Population: the 1200 students at the high school. Statistic: The average number of hours a student at this high school sleeps per night.
e. This is not a survey because a convenience sample was used.
Mathematics
1 answer:
Vladimir [108]3 years ago
5 0

Answer:

Option E

Step-by-step explanation:

This survey will not be reliable as it is chosen for convenience; the first 120 students to arrive in school on a particular morning and this collection of individuals may not be a representative of the population. The study may become biased because it does not take into account the latecomers among the students which might have been changed the study from systematically favoring certain outcomes.

You might be interested in
Please answer this question. FOLLOW ALL OF THE INSTRUCTIONS to get the right anser please. THANK YOU!
Alexus [3.1K]
A) It says in fraction form. y=5/4x +15
b) it says it should be a decimal. If you extend the line, it will reach 15.5 hours.
c) I think your answer was correct
7 0
3 years ago
Which shape will result from taking a cross section of the cuboid through the points shown?
givi [52]

Answer:

hexagon

Step-by-step explanation:

cross section of the cuboid

7 0
2 years ago
Find the midsegment of triangle ABC so that it is parallel to side BC and label it as segment EG on the graph coordinate of E: _
Sholpan [36]

Answer:

Coordinate of E: (-2,3) Coordinate of G: (2.5, 1.5)

Step-by-step explanation:

You first have to find the midpoints of AC and AB.

AC X coordinate:

X1+X2/2

Substitute the x points of AC in

1+(-5)/2=-2

AC Y coordinate:

Y1+Y2/2=3

Substitute the y points of AC in

5+1/2=3

You do the same thing with the AB line. I am pretty sure this works and I hope this helps!




5 0
2 years ago
Yesterday, I ran less than 5 kilometers but more than. 1,200 meters. How far could I have run?
taurus [48]
Less then 5 kilometers and more then 1,200 meters obv
7 0
2 years ago
The graph shows the amount of money paid when purchasing bags of caramel corn at the zoo: What does the point (0, 0) on the grap
Wittaler [7]
Zero bags or caramel corn since the x input is 0 (0 bags) and the result is y=0 (0 dollars)
4 0
3 years ago
Other questions:
  • Over the last three evenings, Kala received a total of 131 phone calls at the call center. The third evening, she received 4 tim
    10·2 answers
  • I really need the answer. will give brainliest!
    9·1 answer
  • The equation s x  2 5 can be used to estimate the speed, s, of a car in miles per
    10·1 answer
  • 4(x - 2) = -12, x = 4​
    6·1 answer
  • The length of each side of a square increases by 2.5 inches to form a new square with a perimeter of 70 inches. The length of ea
    13·1 answer
  • How can you tell whether an exponential equation models growth or decay? Use the general form of an exponential expression to ex
    7·1 answer
  • The area of a circle whose radius is 2.1m²is 13.85m²<br><br> ​
    14·1 answer
  • Your teacher will grade your response for question 11 to ensure that you receive proper credit for your answer.
    6·1 answer
  • Help pls dhhdgsgwsvshgd
    10·1 answer
  • Help please thanks<br> yoi
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!