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
ICE Princess25 [194]
3 years ago
12

Ten students begin college at the same time. The probability of graduating in four years is 63%. Which expanded expression shows

the first and last terms of the expression used to find the probability that at least six will graduate in four years?
(106)×(0.63)6×(0.37)4+...+(1010)×(0.63)10×(0.37)∘=0.706

(105)×(0.63)5×(0.37)5+...+(1010)×(0.63)10×(0.37)∘=0.88

(100)×(0.63)∘×(0.37)10+...+(106)×(0.63)6×(0.37)4=0.540

(100)×(0.63)∘×(0.37)10+...+(105)×(0.63)5×(0.37)5=0.293
Mathematics
2 answers:
Lynna [10]3 years ago
5 0

Answer: the answer is a!


Step-by-step explanation:


sweet [91]3 years ago
3 0

Answer:

Answer is option A

Step-by-step explanation:

Let X be the number of students that graduate in four years. Let's suppose that the academic results of each student is indepent from other students. If we consider the event "To graduate in 4 years" as a success, we can model X as a binomial random variable. Then, the probability of having k students that graduate in 4 years is

P(X = k ) \binom{10}{k}(0.63)^k(0.37)^{10-k}

Since we want to know the probability that X is greater or equal to 6, we calculate the following

P(X\geq 6)= P(X=6)+P(X=7)+... + P(X=10)

P(X\geq 6) = \binom{10}{6}(0.63)^6(0.37)^{4}+\dots + \binom{10}{10}(0.63)^{10}(0.37)^{0}

which is the option A

You might be interested in
Mary and ann made drinks for a picnic. one used 3 cans juice concentrate and 8 cans water. the other 5 cans juice concentrate an
Sveta_85 [38]


I would think that it would be the 3:8 one because if you do the math, 8-3 is 5 and 12-5 is 7. The only reason Im doing it this way is because its the only way I can set it up.

so you have more of a difference with the 12:5 one and less of a difference with the 3:8.

I hope I helped a bit


4 0
3 years ago
A model of a car has a scale of 3 cm : 2 m. The length of the actual hood of the car is 1 m. What is the length of the hood of t
Lubov Fominskaja [6]
So basically 3cm is the model and 2 m is the actual size. So the hood is 1m so it is half of 2m which means the answer to the question is 1.5cm
6 0
3 years ago
What is the GCF of the first two terms of the polynomial 4y3+ 8y2+ 5y + 10? a 4y3 b 4 c 4y d 4y2
Sedaia [141]
The answer is D. 4y^2
5 0
2 years ago
359 +314=<br><img src="https://tex.z-dn.net/?f=359%20%2B%20314" id="TexFormula1" title="359 + 314" alt="359 + 314" align="absmid
vlabodo [156]
The correct answer is 673
9+4= 13
5 turns into a 6 so it’s 6+1 = 7
3+3 = 9
6 0
3 years ago
I need help pls thank y
otez555 [7]
What do you need help with
5 0
2 years ago
Other questions:
  • Slope of (21, 45) and (84, 87)
    14·1 answer
  • I really need help asap!!!!!!!!!!!!!!
    10·1 answer
  • What formula will I use to find the area?
    11·1 answer
  • A cell phone service provider has selected a random sample of 20 of its customers in an effort to estimate the mean number of mi
    14·1 answer
  • Point A is at -7, -3. There are 12 points between A and B. What are possible coordinates for point B?
    6·1 answer
  • How many total pounds did the art club donate?
    9·1 answer
  • Does anyone know who Sarah lord Wilson is from the witch trials
    5·1 answer
  • A = 2b so what is the value of b-a=?<br>​
    14·2 answers
  • Solve for x to the nearest degree.
    8·1 answer
  • M∠1 = _°<br><br> •70<br><br> •50<br><br> •90
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!