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
cricket20 [7]
3 years ago
12

An instructor who taught two sections of engineering statistics last term, the first with 25 students and the second with 40, de

cided to assign a term project. After all projects had been turned in, the instructor randomly ordered them before grading. Consider the first 15 graded projects.
a. What is the probability that exactly 10 of these are from the second section?
b. What is the probability that at least 10 of these are from the second section?
c. What is the probability that at least 10 of these are from the same section?
d. What are the mean value and standard deviation of the number among these 15 that are from the second section?
e. What are the mean value and standard deviation of the number of projects not among these first 15 that are from the second section?
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer:

the answer is b

Step-by-step explanation:

You might be interested in
Please help anyone know how to do this.
dexar [7]

sides of right angle triangle follows Pythagoras theorem

a^2 + b^2 = c^2

where a, b and c are sides of triangle

if you check, option 3 follow this. so answer is option 3

6 0
3 years ago
Read 2 more answers
Tim rents a car. He qualifies for a credit card that will pay for collision insurance on rental cars, if he pays the card off mo
sergey [27]
It would be $57 weekly, and when you multiply that by 4, you get $228/month
4 0
3 years ago
Read 2 more answers
Which equation in slope-intercept form represents a line that is parallel to y=−4x−5 and passes through the point (0,0)?
IrinaK [193]

Answer:

\displaystyle y = -4x

Step-by-step explanation:

0 = 0 ± b

\displaystyle 0 = b \\ \\ y = -4x

* Parallel Lines have SIMILAR <em>RATE OF CHANGES</em> [<em>SLOPES</em>], so −4 remains the way it is.

I am joyous to assist you anytime.

6 0
3 years ago
Whole page for 81! Good luck!
OLEGan [10]

Answer:

Prime number: A prime number has factor of only 1 and itself.

Ex: 3: 1 and 3 are the only ways to compose 3.

A whole number that has factors other than 1 and itself is called a composite number.

Ex: 8: the factors of 8 include 1,2,4,8

Circle 5,7,2,19,3,11

Box 18,20,22,16,15,30,26,38,45,10,21,6,14

To determine the prime factorization of a number, you must break down a number into its factors. (im not sure?)

Continute until all of the factors are (im not sure)

Prime factorization is written exponential form (im not quite sure)

30= 2x3x5

30= 2^1 3^1 5^1

24=2 × 2 × 2 × 3

24= 2^3 x 3

sorry idrk if they are all right

6 0
3 years ago
A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the n
algol [13]
Alright.
So let's say the number of adults is x.
Therefore, the number of boys is 7x + 1.
And then the total amount of girls is 3.5x + 0.5
So then:
x + 7x + 1 + 3.5x + 0.5 = 82
11.5x + 1.5 = 82
11.5x = 80.5
x = 7
So now we can figure out the number of male and female students.
Male students = 7x + 1
7*7 + 1
49 + 1
50
Male Students = 50
Female students = half of 50
50/2 = 25
Female Students = 25
4 0
3 years ago
Other questions:
  • two classes are ordering pizza for a pizza party mrs.jimenez's class has 10 students and is planning to share 4 large pizzas mr.
    10·2 answers
  • Kyle and Linda are married with two children at home and a mortgage. Kyle’s net pay per year is $32,000 and Linda’s is $48,000.
    13·2 answers
  • If n is negative, all But which of the following must also be negative ??
    14·2 answers
  • Write a real world scenario in which 12 fluid ounces would need to be converted into liters . Then make the conversion . Use 1 f
    10·1 answer
  • Arsenic is toxic to humans. The greatest amount of arsenic that is allowed in drinking water is 10 parts per billion. A test sho
    7·1 answer
  • Is selecting the winning ticket in a lottery a binomial or hypergeometric distribution?
    15·1 answer
  • The perimeter of a rectangular garden is 26 ft. What is the width of the
    12·2 answers
  • Help me plz<br>don't need to be explained unless you want to​
    14·1 answer
  • A 215​-inch pipe is cut into two pieces. One piece is four times the length of the other. Find the length of the shorter piece.
    5·1 answer
  • Mr. Tompkin's art class painted a mural on one wall of the classroom.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!