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
Vlad [161]
3 years ago
6

HELP PLS!! A study conducted by the Center for Disease Control that asked 15,000 students about their sleep habits showed that a

bout 73% of high school students did not get the required 8 hours of sleep per night. Let p be the proportion of high school students who do not get 8 hours of sleep daily.
1.What is the mean of the sampling distribution of p?



2. Find the standard deviation of the sampling distribution of p. Round to 4 decimal places. ( decimal form pls obvi )



3. Find the probability of selecting a sample of 15,000 students in which between 70% and 75% of the students did not get 8 hours of sleep every day.
Mathematics
1 answer:
nexus9112 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

so if you have 15k and 73% and 8 hours what you need to do is do the math and do 15x8 what did you get so you have to go to the 73% what was you answer to 15x8 add that to 73 and you can do 45 in to 100

You might be interested in
NEED THIS ASAP Simplify 3^2 ⋅ 3^5.<br><br> A) 3^7<br><br> B)3^10<br><br> C)9^7<br><br> D)9^10
Free_Kalibri [48]

Use\ a^n\cdot a^m=a^{n+m}\\\\3^2\cdot3^5=3^{2+5}=3^7\to\boxed{A)}

8 0
3 years ago
In how many ways can four students line up at a bus stop?
Naddik [55]

Answer:

24

Step-by-step explanation:

Statistically... this is just a permutation of 4

4 0
3 years ago
Read 2 more answers
Camden accepted a new job at a company with a contract guaranteeing annual raises. Camden's salary after working for nn years ca
kaheart [24]

Answer:

2000

Step-by-step explanation:

Given the equation :

S=2000n+55000

Comparing the equation given to the standard linear equation formula :

y = mx + c

Where ; c = intercept ; m = slope ; y = dependent variable and x = independent variable

From The comparison, the slope of the equation given = 2000.

According to the context, the slope means that Camden salary will increase by 2000 each year.

8 0
3 years ago
A book is 210 pages long; 140 of the pages have images on them. If Patrick opens the book to a random page, what is the probabil
Flauer [41]

Answer: as a ratio it’s 140:210 and as a simplified fraction it’s 2/3. But not simplified it’s still 140/210

Step-by-step explanation:

7 0
3 years ago
Evaluate expression 20+3c+17d when c=8 and d=2.
Tems11 [23]
Just plug in the numbers for the variables.


20+3(8)+17(2)=
3 0
4 years ago
Other questions:
  • Four friends are sharing 1/2 of a cake. What portion of the whole cake will each friend get?
    12·2 answers
  • Which statements are true about quadrilaterals?
    14·1 answer
  • 40 % of what amount is $256?
    14·1 answer
  • It takes one examiner 15 hours to mark 80 exam papers. How long should it take 5 examiners to mark 80 exam papers​
    8·1 answer
  • If x=3 what is the value of the expression -2x(2 x^3+3x^2-5x)
    5·1 answer
  • Which polygons are congruent?  Choose all answers that are correct :D
    10·2 answers
  • Stephen is testing the difference in means between time it takes to travel school in a bus and time it takes to travel to school
    13·1 answer
  • ASAP PLEASE HELP
    8·1 answer
  • What 3D figure will create a rectangle if you take a cross-section perpendicular to the base? A. Cylinder B. Rectangular Pyramid
    11·1 answer
  • Please please please help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!