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
6

Question state in photo

Mathematics
2 answers:
vovangra [49]3 years ago
5 0

Answer:

I believe it is B

Step-by-step explanation:

3 out of 4 options to land on are less than 5

Mice21 [21]3 years ago
3 0

Answer:

B 3/4

Step-by-step explanation:

Total number of sections with equal area: 4

Number of sections with a number less than 5: 3

p(getting a number less than 5) =

= (number of sections with a number less than 5)/(total number of sections)

= 3/4

Answer: B 3/4

You might be interested in
Solve the system using substitution y=2x+10 y=x+8
kvv77 [185]

Answer:

x = -2

Step-by-step explanation:

x+8 = 2x +10

-2x + x = 10-8

-x = 2

divide both side by -1

answer -- x = -2

8 0
3 years ago
A slitter assembly contains 48 blades. Five blades are selected at random and evaluated each day of sharpness. If any dull blade
Alex73 [517]

Answer:

Part a

The probability that assembly is replaced the first day is 0.7069.

Part b

The probability that assembly is replaced no replaced until the third day of evaluation is 0.0607.

Part c

The probability that the assembly is not replaced until the third day of evaluation is 0.2811.

Step-by-step explanation:

Hypergeometric Distribution: A random variable x that represents number of success of the n trails without replacement and M represents number of success of the N trails without replacement is termed as the hypergeometric distribution. Moreover, it consists of fixed number of trails and also the two possible outcomes for each trail.

It occurs when there is finite population and samples are taken without replacement.

The probability distribution of the hyper geometric is,

P(x,N,n,M)=\frac{(\limits^M_x)(\imits^{N-M}_{n-x})}{(\limits^N_n)}

Here x is the success in the sample of n trails, N represents the total population, n represents the random sample from the total population and M represents the success in the population.

Probability that at least one of the trail is succeed is,

P(x\geq1)=1-P(x

(a)

Compute the probability that the assembly is replaced the first day.

From the given information,

Let x be number of blades dull in the assembly are replaced.

Total number of blades in the assembly N = 48.

Number of blades selected at random from the assembly  n= 5

Number of blades in an assembly dull is M  = 10.

The probability mass function is,

P(X=x)=\frac{[\limits^M_x][\limits^{N-M}_{n-x}]}{[\limits^N_n]};x=0,1,2,...,n\\\\=\frac{[\limits^{10}_x][\limits^{48-10}_{5-x}]}{[\limits^{48}_5]}

The probability that assembly is replaced the first day means the probability that at least one blade is dull is,

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

(b)

From the given information,

Let x be number of blades dull in the assembly are replaced.

Total number of blades in the assembly  N = 48

Number of blades selected at random from the assembly  N = 5

Number of blades in an assembly dull is  M = 10

From the information,

The probability that assembly is replaced (P)  is 0.7069.

The probability that assembly is not replaced is (Q)  is,

q=1-p\\= 1-0.7069= 0.2931

The geometric probability mass function is,

P(X = x)= q^{x-1} p; x =1,2,....=(0.2931)^{x-1}(0.7069)

The probability that assembly is replaced no replaced until the third day of evaluation is,

P(X = 3)=(0.2931)^{3-1}(0.7069)\\=(0.2931)^2(0.7069)= 0.0607

(c)

From the given information,

Let x be number of blades dull in the assembly are replaced.

Total number of blades in the assembly   N = 48

Number of blades selected at random from the assembly  n = 5

Suppose that on the first day of the evaluation two of the blades are dull then the probability that the assembly is not replaced is,

Here, number of blades in an assembly dull is M  = 2.

P(x=0)=\frac{(\limits^2_0)(\limits^{48-2}_{5-0})}{\limits^{48}_5}\\\\=\frac{(\limits^{46}_5)}{(\limits^{48}_5)}\\\\= 0.8005

Suppose that on the second day of the evaluation six of the blades are dull then the probability that the assembly is not replaced is,

Here, number of blades in an assembly dull is M  = 6.

P(x=0)=\frac{(\limits^6_0)(\limits^{48-6}_{5-0})}{(\limits^{48}_5)}\\\\=\frac{(\limits^{42}_5}{(\limits^{48}_5)}\\\\= 0.4968

Suppose that on the third day of the evaluation ten of the blades are dull then the probability that the assembly is not replaced is,

Here, number of blades in an assembly dull is M

= 10.

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

 

The probability that the assembly is not replaced until the third day of evaluation is,

P(The assembly is not replaced until the third day)=P(The assembly is not replaced first day) x P(The assembly is not replaced second day) x P(The assembly is replaced third day)

=(0.8005)(0.4968)(0.7069)= 0.2811

5 0
3 years ago
On the floor exercise, Nadia scored 9.85. Mary Lou scored 8.975. How much higher was Nadia's score on the floor exercise?
Pepsi [2]

Answer:

0.875

Step-by-step explanation:

9.85-8.975 equala 0.875

7 0
3 years ago
Read 2 more answers
the expression 12g gives the number of kilometers a car can travel using g liters of gasoline how far can this car travel on 5 1
dmitriy555 [2]
The answer is 66 kilometers.

Start with the given expression: 12g where 'g' standts for the liters of gasoline.

Input your data and solve: 12 * 5.5 = 66
3 0
3 years ago
Joshua has $24.He used 5/8of his money.How much money did he spend
zhenek [66]
So 5/8 of $24
5/8 * 24
15

Joshua spent $15.

Hope this helps :)
5 0
3 years ago
Other questions:
  • The expression 3 x 7 - 4x8+2 is equivalent to which of the following?
    10·1 answer
  • when the sum of an unknown number z and twenty two is divided by the same unknown number,the quotient is twelve what is the unkn
    11·1 answer
  • Which unit rate corresponds to the proportional relationship shown in the graph? Drag and drop the answer into the box to match
    6·2 answers
  • 9th grade math please help
    6·1 answer
  • Ms. Fideli can divide all the students in the chorus into equal groups of 12 students each. How many students could be in the ch
    10·2 answers
  • 1
    12·2 answers
  • Charlie saves $28.35 each month for 6 months. In the seventh month, he only saves $10.70.
    9·1 answer
  • What is the percentage of lemons in this group of lemons and strawberries?
    7·1 answer
  • Help someone with both of these ASAP thank you!!
    9·1 answer
  • How do you type an essay?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!