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
Xelga [282]
3 years ago
7

X is a normally distributed variable with mean μ = 17 and standard deviation σ = 3 find:

Mathematics
1 answer:
defon3 years ago
3 0

Answer:

a)0.09176

b)0.22065

c)0.62551

Step-by-step explanation:

a) p(x>21) = p(z> (21-17)/3)=p(z>1.333) = 1-.90824= 0.09176 (subtracting from one because we are looking at the right side of the graph from the Z-table)

b)p(x<15) = p(z< (15-17)/3)=p(z<-.6667) = 0.22065

c)p(16 < x < 25)= (z(16-17)/3 < p < z(25-17)/3)= z(-.333) < p < z(2.667)=.99621 -.37070 = 0.62551

You might be interested in
Explain how using the expanded form 4,000 + 30 + 2 can help find the product of 5 and 4,032
belka [17]
5*4032=5*(4000+30+2)=5*4000+5*30+5*2,     it helps to break down the number to smaller bits, 
8 0
3 years ago
The lateral area of a right prism having a perimeter of 25 inches and a height of 5 inches is?
Pepsi [2]

Answer:

The lateral area is LA=125\ in^{2}

Step-by-step explanation:

we know that

The lateral area of a right prism is equal to

LA=PH

where

P is the perimeter of the base of the prism

H is the height of the prism

in this problem we have

P=25\ in

H=5\ in

substitute

LA=(25)(5)=125\ in^{2}

4 0
3 years ago
Find the sum. 376 249 238 + 492​
Snezhnost [94]

Answer:

it is 1,355

Step-by-step explanation:

all you have to do is add them up through a calculator or add them up the simple addition way which would be putting them on top of each other hope it helps

5 0
3 years ago
Simplify. Remove all perfect squares from inside the square root.
alukav5142 [94]

Answer:

umm we can't see what ur talking about

Step-by-step explanation:

4 0
3 years ago
The cost of 24 bottles of water is $6?witch expression shows to find the cost of 10 bottles of water
Dovator [93]

Answer:

so 24 bottles = 6 so you need to find out what 1 bottle cost so you do 6/24 = 0.25$ so then to find 10 you just easily multiple 10x0.25 = 2.5$

Step-by-step explanation:

Here you go, Hope this helped :)

3 0
3 years ago
Other questions:
  • What's the length of side b in the figure below?
    13·2 answers
  • Identify each solid figure
    5·2 answers
  • Help me!!!! And please provide steps w/ answer!!
    5·1 answer
  • One bread recipe calls before 2 1/3 cups of flour. another bread recipe calls for 2 1/2 cups of flour. tim has 5 cups of flour.
    10·1 answer
  • The sum of two numbers is twenty-four. Four less than three times the
    13·1 answer
  • What are the outputs of -1 and 1 in g(x)
    14·1 answer
  • Rational numbers with a denominator of<br> 4 that fall between - 1 and -2, exclusive
    14·1 answer
  • Solve for x show your work
    13·2 answers
  • Please help! Will mark brainliest
    7·1 answer
  • Solve the inequality. -1/2a &lt; 6​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!