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
VikaD [51]
4 years ago
11

The average American adult has completed an average of 11.25 years of education with a standard deviation of 1.75 years. A rando

m sample of 75 adults is taken. a) What is the probability that the sample will have a mean more than 11.5? b) What is the probability that the sample will have a mean between 11 and 12 years?
Mathematics
1 answer:
alexgriva [62]4 years ago
4 0
A is .088 but im trying to find b too!
You might be interested in
189 is 45% of what number? <br><br> 198 is 55% of what number?
daser333 [38]
189 is 45% of 420 and 198 is 55% of 360

189 = .45x
/.45     /.45
420 = x

198 = .55x
/.55     /.55
360 = x
6 0
3 years ago
In an endurance race, Rachel ran
Reil [10]

Answer:

31\frac{1}{5}\ miles

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

so

The distance is equal to multiply the speed by the time

we have

speed=9\frac{3}{5}\ \frac{miles}{hour}

time=3\frac{1}{4}\ hours

distance=(9\frac{3}{5})(3\frac{1}{4})

Convert mixed number to an improper fraction

9\frac{3}{5}=9+\frac{3}{5}=\frac{9*5+3}{5}=\frac{48}{5}

3\frac{1}{4}=3+\frac{1}{4}=\frac{3*4+1}{4}=\frac{13}{4}

substitute

distance=(\frac{48}{5})(\frac{13}{4})=\frac{624}{20}=31,2\ miles

Convert to mixed number

31.2\ mi=31+0.2=31+\frac{1}{5}=31\frac{1}{5}\ miles

3 0
3 years ago
5. Find mTOS in the figure below.
Vikentia [17]

Applying the definition of a linear pair, m∠TOS = 52°

<em>Recall:</em>

Linear pair are two angles on a straight line whose sum equals 180°.

Given:

  • m∠TOU = 128°
  • m∠SOV = (4x + 8)°

m∠TOU + m∠TOS = 180° (linear pair)

  • Substitute

128° + m∠TOS =  180°

  • Subtract 128° from both sides of the equation

m∠TOS = 180° - 128°

m∠TOS = 52°

Thus, applying the definition of linear pair, m∠TOS = 52°

Learn more about linear pair on:

brainly.com/question/3768841

7 0
2 years ago
Read 2 more answers
If f (x) = x-2 and g (x,y) = y2 + x, then g (3, f(4)) is?
alex41 [277]
f(4)=4-2=2\\\\&#10;g(3,f(4))=g(3,2)=2^2+3=4+3=7
4 0
3 years ago
Read 2 more answers
What is 2(5x+3)-6x=7x+30+5x<br> Please show work
earnstyle [38]

Answer: X=-3


Step-by-step explanation:

2(5x+3)-6x=7x+30+5x

10x+6-6x=7x+30+5x

4x-12x=30-6

-8x=24

-x=3

x=-3

5 0
3 years ago
Other questions:
  • Which expression is equivalent to 2^2×2/2^4
    15·1 answer
  • Solve the system 5x+3y=-9 &amp; -2+y=8
    10·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    14·2 answers
  • Cedric had 2,204 baseball cards that he wanted to sell. He sold them in packages of 4 and charged $2.25 for each package. If he
    6·1 answer
  • The segments shown below could form a triangle.<br> 15<br> A<br> O A. True<br> B. False
    13·2 answers
  • Has anyone done IXL N.2 7th grade, can you help me!!!
    12·1 answer
  • Find the area of the compound figure. Round your answer to 2 decimal places if required. (Use π = 3.14)
    15·1 answer
  • Solve for X x+27 = -12 pls hurry pleaseeeee
    11·1 answer
  • In 5 years' time, Kate's father will be 3 times as old as Kate. Four years ago, her father
    7·1 answer
  • I need to answer in a rush ABC or D or
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!