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
Rashid [163]
2 years ago
5

Pwease help me :0 Thank u!

Mathematics
1 answer:
defon2 years ago
7 0

Answer:

1/2

Step-by-step explanation:

simply divide 3/10 to get 0.3 and then divide 3/5 to get 0.6 then just divide 0.3 to 0.6 to get 0.5 or 1/2

You might be interested in
Class 8 squares and square roots without adding find the sum of a) 1+3+5+7+9+11+13+15+17.
Nata [24]

Answer:

given

n=9

a=1

d=3-1=2

Step-by-step explanation:

now , by formula,

sn = n/2(2a+(n-1)d)

= 9/2(2×1+(9-1)×2)

=9/2×18

=81

8 0
2 years ago
The probability that a grader will make a marking error on any particular question of a multiple-choice exam is 0.15. If there a
sashaice [31]

Answer:

P(X=0)=(10C10)(0.15)^{0} (1-0.15)^{10-0}=0.1969

P(X \geq 1)= 1-P(X

P(X=0)=(nCn)(p)^{0} (1-p)^{n-0}=(1-p)^n

P(X \geq 1)= 1-P(X

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

The complement rule is a theorem that provides a connection between the probability of an event and the probability of the complement of the event. Lat A the event of interest and A' the complement. The rule is defined by: P(A)+P(A') =1

Solution to the problem

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=10, p=0.15)

what is the probability that no errors are made?

For this case means that all the questions were correct so we want this probability:

P(X=0)=(10C10)(0.15)^{0} (1-0.15)^{10-0}=0.1969

what is the probability that at least one error made?

For this case we want this probability:

P(X \geq 1)

And we can use the complement rule:

P(X \geq 1)= 1-P(X

If there are n questions and the probability of a marking error is p rather than 0.15, give expressions for the probabilities of no errors  and at least one error

P(X=0)=(nCn)(p)^{0} (1-p)^{n-0}=(1-p)^n

P(X \geq 1)= 1-P(X

8 0
3 years ago
Andre is making paper cranes to decorate for a party. He plans to make one large paper crane for
UkoKoshka [18]

I need sum more info just email me and we can get this dun

8 0
3 years ago
Graph y=-2x+5<br> Plz hurry
Vedmedyk [2.9K]

Answer:

Here's a picture of the answer.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
3times square root of 81
algol [13]
27 because the square root of 81 is 9 and 9 times 3 is 27.
7 0
3 years ago
Read 2 more answers
Other questions:
  • the mean height of the 30 children in a room is 76 cm james whose height is 107 cm went into the room what is the new mean of th
    11·1 answer
  • Maria made a cubical tank which can hold 42875 cubic meter of water. what is the height of the tank
    6·1 answer
  • Slope intercept form for 1/-2
    5·1 answer
  • If the linear correlation between two variables is​ negative, what can be said about the slope of the regression​ line? Choose t
    9·1 answer
  • If there are 32 students in the class and two teachers, how many feet are there?
    5·1 answer
  • What type of triangle is this
    15·1 answer
  • Help me quickkkk please
    9·1 answer
  • Find f(2) for the function below f(x)=1/8 times 5^x
    15·1 answer
  • -2 (t+2) +5 t = 6 t + 11
    15·2 answers
  • 6th grade math i will give brainliest
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!