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
KATRIN_1 [288]
3 years ago
6

A survey found that 8 out of 10 parents approved of the new principal’s performance. If 4 parents name are chosen with replaceme

nt what is the probability they all approve of the principal’s performance
Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0

Answer:

The probability is 0.044

Step-by-step explanation:

Step-by-step explanation:

Let p be the probability that the new principal’s performance is approved.

This is obtainable from the survey and it is 8/10 = 0.8

Let q be the probability that the new principal’s performance is disproved.

That will be;

1 - q = 1- 0.8 = 0.2

To calculate the probability that 14 parents names are chosen at random and they all

approve of the principal’s performance, we use the Bernoulli approximation of the binomial theorem.

That will be;

14C14 * p^14 * q^0

= 1 * 0.8^14 * 0.2^0

= 0.043980465111 which is approximately 0.044

You might be interested in
Sam wrote this equation for the area of a parallelogram.
prisoha [69]
C- 8.7. Divide 116.58 by 13.4 to get 8.7
8 0
3 years ago
Read 2 more answers
Pleeeeeeease help
Lubov Fominskaja [6]

Answer:

y=5/2x-1

Step-by-step explanation:

8 0
2 years ago
What is the solution to this system of equations?<br> x + y = 11<br> 2x - y = 10
GenaCL600 [577]
(7,4) they’re both positive numbers
7 0
2 years ago
HELPPPPPPPPPPPPPPPP!!!!!!
timofeeve [1]

Answer:

15

Step-by-step explanation:

It is a right angle so it will add up to 90 degrees.

This is the equation:

x=90-19-56

x=15

4 0
2 years ago
Read 2 more answers
Y= 4x + 2<br> where the domain is the set of all of<br> the positive even numbers<br> less than 10.
inysia [295]

The range of the function y = 4x + 2 where the  domain is the set of all of

the positive even numbers  less than 10 is {10, 18, 26, 34}

The given equation is:

y  =  4x  +  2

The domain is the set of all of  the positive even numbers  less than 10.

That is, x = {2, 4, 6 ,8}

To get the range, find the values of y for x = 2, 4, 6, and 8

For x = 2:

y = 4(2)  +  2

y  =  8  +  2

y   =  10

For x = 4:

y = 4(4)  +  2

y  =  16  +  2

y   =  18

For x = 6:

y = 4(6)  +  2

y  =  24  +  2

y   =  26

For x = 8:

y = 4(8)  +  2

y  =  32  +  2

y   =  34

Therefore, the range = {10, 18, 26, 34}

Learn more here: brainly.com/question/18479953

5 0
2 years ago
Other questions:
  • Ten less than the quotient of thirty and a number
    12·2 answers
  • Need a helping hand here
    8·1 answer
  • A square rug has an area of 46 ft2.
    13·1 answer
  • What is the slope of line of 19,-16 and -7,-15
    10·1 answer
  • Last question just had to be one
    12·1 answer
  • The National Association of Realtors estimates that 23% of all homes purchased in 2004 were consideredinvestment properties. If
    13·1 answer
  • PLZZ HELP ASAP The graph of the function f(x) = –(x + 6)(x + 2) is shown below.
    8·1 answer
  • Noah has 5 meters of rope. How many pieces of rope of length 1/2 meter can he cut from it? Draw a diagram to illustrate your sol
    15·1 answer
  • (9t + 1) + 7(1 + 9t)<br><br> Complete the missing expressions!!
    9·1 answer
  • If triangle ABC is congruent to DEF, then what side is congruent to BC?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!