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
goblinko [34]
3 years ago
13

A binomial probability has p=.20 and n=100, what are the mean and standard deviation?

Mathematics
1 answer:
pychu [463]3 years ago
4 0
Mean: np=100\times0.20=20

Standard deviation: \sqrt{np(1-p)}=\sqrt{100\times0.20\times0.80}=4
You might be interested in
Add -3 5/6 + 5 3/7<br><br> A.) 1 25/42<br> B.) 2 8/13<br> C.)-9 11/42<br> D.) 1 27/42
Fantom [35]

Answer:

A. 1 25/42

Step-by-step explanation: =-3 5/6 +5 3/7

= (-23/6)+ (38/7)

=(-161+228)/42

=-67/42

8 0
3 years ago
A decorative floor pattern has 1 red square tile surrounded by 12 blue tiles. Write an expression to show how many total red and
Nonamiya [84]

The general equation is that for every red tile, there must be 12 blue ones.

Algebraically this is expressed as b = 12r where r is red and b is blue. Your teacher might like you to express it as y = 12x where y is blue and x is red. The meaning is the same.

For beginners it might be easier to say b = 12r. So if you have 15 reds then r = 15

b = 12 * r

b = 12 * 15

b = 180 blue tiles.

8 0
3 years ago
Read 2 more answers
Use the quadratic formula to solve for x 8x^2+7x+1=0 plz help
vagabundo [1.1K]

Answer:

X= -7 ± √17 / 16

x= - 0.7798...

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The curve with equation y = x - 3x + 1 is reflected in the x-axis.
ankoles [38]

Answer:

Step-by-step explanation:

C

7 0
3 years ago
Which values are solutions to the inequality below?<br> Check all that apply.
Ludmilka [50]
I think the answer is -100
5 0
2 years ago
Other questions:
  • Which of the following best describes the change in the mean when 1213 is included in the data set below? 34, 75, 26, 81, 65, 38
    8·2 answers
  • Round to the nearest ten thousand 905154
    9·1 answer
  • How do i solve this ? :')
    12·1 answer
  • To paint a house, a painting company charges a flat rate of $500 for supplies, plus $50 for each hour of labor.
    10·1 answer
  • What is the ratio of 15 to 21
    7·1 answer
  • Find the value of X:
    12·1 answer
  • King raised $28, which is 35% of their goal.<br> What is the band's goal?
    10·1 answer
  • Some one help plz I need to find the area /:
    5·1 answer
  • Combine the like terms to create an equivalent expression:<br> -k-(-8k)
    5·2 answers
  • Please help me on this
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!