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
Stolb23 [73]
3 years ago
8

A coin is to be tossed 36 times what are the mean and standard deviation of the number of heads

Mathematics
1 answer:
viva [34]3 years ago
3 0

Answer:

Binomial distribution,

n = 36 independent events,

p = 0.5 probability of success and of failure, as 1-p = p.

Mean of binomial distribution is np=18.

Variance is np(1-p)=9

Standard deviation is sqrt(variance)=3.

You might be interested in
In the drawing below, find x if ABCD is a square and angle B= 4x + 10.
iragen [17]

Answer:

x=20

Step-by-step explanation:

4x +10 = 90

-10 from both sides

that gives you 4x=80

80 divided by 4 gives you 20=x

6 0
3 years ago
Help plz plz plz
IrinaK [193]

Answer:

ST = 15 cm

Step-by-step explanation:

find BC first by adding four other sides and subtracting from 36.8

sum of 4 sides is 30.8, so BC = 6

Now find ST by creating a proportion from corresponding sides:

BC / ST = DE / UV

6 / ST = 13.2 / 33

Cross-multiply:

13.2ST = 198

ST = 198/13.2

ST = 15

6 0
3 years ago
Plz help very important question!!
Zepler [3.9K]

Answer:

the domain is: 0,-3,4,2,-2.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Peter placed an order with an online nursery for 6 apple trees and 5 azaleas and the order came to $147. The next order for 3 ap
Setler79 [48]

Answer:

$243

Step-by-step explanation:

The first order you made :

6 apple

5 azaleas

And total cast was:

 $147

The secant order you order was:

3 apples

4 azaleas

And total cast was:

$96

The total cast of both orders is:

$243

5 0
2 years ago
Read 2 more answers
Helppppppp unicorn we’re almost done
Inessa05 [86]

Answer:

2 .KL = HF

3 .GIVEN

4 . JKL = GHF , HL

6 0
2 years ago
Other questions:
  • Steven wakes up for school at 6:30 in the morning. if school starts at 8:00 am, how long does he have from the time he wakes up
    12·1 answer
  • What does x equal .....​
    12·1 answer
  • If isosceles triangle ABC has a 130° angle at vertex B, which statement must be true?
    8·2 answers
  • A total of 600 tickets were sold for the school play. they were either adult tickets or student tickets. the number of student t
    15·1 answer
  • What interest rate would you need to get if you want $10,000 to grow to $25,000 in just 4 years assuming it is simple interest g
    5·1 answer
  • You flip a coin and what is p (not tails
    9·2 answers
  • Guys.. I’m going to get held back, I. Need. Help.
    10·2 answers
  • Hey guys can you please help me?? Thank you!
    9·2 answers
  • Solve for x in this equation.<br> 7^3x-17 = 49^x
    9·2 answers
  • What is -1/6 as a decimal? a) -16 b) - 6 c) - 6 d) -1.6​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!