The correct option is A. There was a very small middle class, only a few wealthy and a large underclass
Explanation:
In the South, there are fewer types of folk housing. The text points to " There was a very small middle class, only a few wealthy and a large underclass" as a probable reason
what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15
step-by-step explanation:
the answer is b i just did that
step-by-step explanation:
[tex]Name two lines in the diagram. i need my answer checked. i chose: b[/tex]
The correct option is A. There was a very small middle class, only a few wealthy and a large underclass
Explanation:
In the South, there are fewer types of folk housing. The text points to " There was a very small middle class, only a few wealthy and a large underclass" as a probable reason
a. 0.11
b. 110 students
c. 50 students
d. 0.46
e. 460 students
f. 540 students
g. 0.96
Explanation:
(See attachment below)
a. Probability that a student got an A
To get an A, the student needs to get 9 or 10 questions right.
That means we want P(X≥9);
P(X>9) = P(9)+P(10)
= 0.06+0.05=0.11
b. How many students got an A on the quiz
Total students = 1000
Probability of getting A = 0.11 ---- Calculated from (a)
Number of students = 0.11 * 1000
Number of students = 110 students
So,the number of students that got A is 110
c. How many students did not miss a single question
For a student not to miss a single question, then that student scores a total of 10 out of possible 10
P(10) = 0.05
Total Students = 1000
Number of Students = 0.05 * 1000
Number of Students = 50 students
We see that 5
d. Probability that a student pass the quiz
To pass, a student needed to get at least 6 questions right.
So we want P(X>=6);
P(X>=) =P(6)+P(7)+P(8)+P(9)+P(10)
=0.08+0.12+0.15+0.06+0.05=0.46
So, the probability of a student passing the quiz is 0.46
e. Number of students that pass the quiz
Total students = 1000
Probability of passing the quiz = 0.46 ----- Calculated from (d)
Number of students = 0.46 * 1000
Number of students = 460 students
So,the number of students that passed the test is 460
f. Number of students that failed the quiz
Total students = 1000
Total students that passed = 460 ----- Calculated from (e)
Number of students that failed = 1000 - 460
Number of students that failed = 540
So,the number of students that failed is 540
g. Probability that a student got at least one question right
This means that we want to solve for P(X>=1)
Using the complement rule,
P(X>=1) = 1 - P(X<1)
P(X>=1) = 1 - P(X=0)
P(X>=1) = 1 - 0.04
P(X>=1) = 0.96
[tex]A large class with 1,000 students took a quiz consisting of ten questions. To get an A, students nee[/tex]
(a) 0.075
(b) 0.038
(c) 0.677
Step-by-step explanation:
(a) P(Z > 93) = P(Z > [tex]\frac{93-80}{9} =1.44[/tex])
= 0.075
(b) P(Z < 64) = P(Z < [tex]\frac{64-80}{9} =1.78[/tex])
= 0.038
(c) P( 72 < Z < 90) = P( -0.89 < Z < 1.11)
⇒ P(1.11 ) - P(-0.89) = 0.677
what is the question?
Step-by-step explanation:
i am confused