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
Dafna11 [192]
3 years ago
12

PLEASE HELP!!!!

Mathematics
1 answer:
Bogdan [553]3 years ago
5 0

Answer:

Step-by-step explanation:

We would apply the formula for binomial distribution which is expressed as

P(x = r) = nCr × p^r × q^(n - r)

Where

x represent the number of successes.

p represents the probability of success.

q = (1 - r) represents the probability of failure.

n represents the number of trials or sample.

From the information given,

p = 18% = 18/100 = 0.18

q = 1 - p = 1 - 0.18

q = 0.82

n = 5

Therefore,

P(x ≤ 2) = p(x = 0) + p(x = 1) + p(x = 2)

P(x = 0) = 5C0 × 0.18^0 × 0.82^(5 - 0)

P(x = 0) = 0.37

P(x = 1) = 5C1 × 0.18^1 × 0.82^(5 - 1)

P(x = 1) = 0.41

P(x = 2) = 5C2 × 0.18^2 × 0.82^(5 - 2)

P(x = 2) = 0.18

Therefore,

P(x ≤ 2) = 0.37 + 0.41 + 0.18 = 0.96

You might be interested in
Find the area of the surface generated by revolving the curve about the axis y = 9-x^2
Nat2105 [25]

The area of the surface generated by revolving the curve about the axis y = 9-x² is 12π

<h3>What is a revolution on a graph? or curve?</h3>

Surfaces of revolution are graphs of functions f(x,y) that rely exclusively on the distance from the origin of the point (x,y).

Polar coordinates (r,) are one approach to discuss such surfaces. A "surface of revolution" is formed by rotating a curve around an axis.

Consider a curve with coordinates x and z in the "x0" half of the Euclidean plane.

<h3>What is the calculation justifying the above answer?</h3>

y = √(9-x²)

⇒ dy = (-2x)/2√9-x²)

= -x/√(9-x²)

Note that surface area (s) is given as:

\int\limits^b_a {2\pi y} √1 + (dy/dx)² dx

= 2\pi \int_{1}^{-1} √9-x² * √[1 + (-x)/√9-x²)]dx

= 2π \int_{1}^{-1}3dx
= 6π [x]₋¹₁

= 6π (1-(-1)

= 6π (2)

= 12π

Learn more about revolving on a curve:
brainly.com/question/2293431
#SPJ4

6 0
1 year ago
If the volume of sand is increasing at a constant rate, is the height increasing at a constant rate? Explain.
AysviL [449]
It does not necessarily mean that the height will rise although I it could rise.this is because volume is what is inside your shape. It could spread out more and have more volume. If you think I'm smart let me tell you I'm only in 4th grade not bragging
4 0
3 years ago
Decide whether the triangles are similar. If so, determine the appropriate expression to solve for
astraxan [27]

Answer:

ΔABC ~ ΔEDF; x = r × w/z

Step-by-step explanation:

m∠ABC = 180 -47 - 62 =71 = m∠EDF

ΔABC ~ ΔEDF

w/z = x/r

x = r × w/z

6 0
3 years ago
Read 2 more answers
Jason spent half of his allowance going to the movies. He washed the family car and earned seven dollars. What is his weekly all
Delvig [45]
13-7=6
6 times 2 =12
his weekly allowance is 12
6 0
3 years ago
Read 2 more answers
How many cups in a quart?
allochka39001 [22]
4 us customary cups
in one quart
3 0
3 years ago
Other questions:
  • Solve The Equation<br> 5p = -30
    14·2 answers
  • YW bisects &lt;XYZ. m&lt;XYW=(2x+7) and m&lt;XYZ= (6x-8). find the value of the X and the measure of &lt;XYZ
    10·1 answer
  • ¿Cuál es el área de un círculo cuya circunferencia mide 7π cm?
    6·1 answer
  • 1/8% is what as a decimal
    13·1 answer
  • The table shows the relationship y=kk. It’s a constant of proportionality, k?
    5·2 answers
  • Y+4=x <br>2y+2x=8<br><br>PLEASE ANSWER QUICK I HAVE A QUIZ DUE PLS ITS 15 POINTS​
    9·1 answer
  • Consider w1 = 4 + 2i and w2 = –1 – 3i. Which graph represents the sum w1 + w2?
    7·2 answers
  • 2. ALMN and APMN are shown below. What additional information is necessary to prove
    9·1 answer
  • Which is the more polar bond in each of the following pairs f―cl or br―cl
    8·1 answer
  • What is the equation of the parabola?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!