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
skelet666 [1.2K]
3 years ago
8

3) The average age of students at XYZ University is 24 years with a standard deviation of 8 years. Number of students at the uni

versity is 7500. A random sample of 36 students is selected. What is the probability that the sample mean will be between 25.5 and 27 years
Mathematics
1 answer:
otez555 [7]3 years ago
3 0

Answer:

0.1875

Step-by-step explanation:

σM=σ/√N

=8/√7500

=8/86.608

=0.092

Z=(x-μ)/σ/√N

=(25.5-36)/8/√7500

=-10.5/0.0092=-1141.304

Z score = -1.3125

=(27-36)/8/√7500 =

=9/0.0092=978.261

Z score= -1.125

-1.125-(-1.3125)=-1.125+1.3125)= 0.1875

The probability that the sample mean will be between 25.5 and 27 years

P(between 25.5 and 27) = 0.1875

You might be interested in
Prove that the sum of all natural numbers is -1/12.
ankoles [38]
This is not true. The infinite series


\displaystyle\sum_{n=1}^\infty n

converges if and only if the sequence of its partial sums converges. The k-th partial sum is

\displaystyle\sum_{n=1}^kn=\frac{k(k+1)}2

but clearly this diverges as k gets arbitrarily large.
5 0
3 years ago
51. Jonathan is selling vintage albums to a rare music
Doss [256]
The answer is D.$27.50
6 0
3 years ago
For the equation 8x + 2y = 16 What is the slope? What is the y-intercept (write as an ordered pair)? What is the x-intercept (wr
GREYUIT [131]

Answer:

Step-by-step explanation:

8x+2y=16

2y=-8x+16

y=-4x+8

slope is -4

y-intercept is (0,8)

x-intercept is (2,0)

8 0
3 years ago
Read 2 more answers
Hi ill give points answer me now bye
Usimov [2.4K]
Can you pls brainlest me I need it so much
5 0
3 years ago
Read 2 more answers
A trailer will be used to transport several 40-pound crates to a store. The greatest amount of weight that can be loaded into th
docker41 [41]

Given :

A trailer will be used to transport several 40-pound crates to a store.

The greatest amount of weight that can be loaded into the trailer is 1,050 pounds.

An 82-pound crate has already been loaded onto the trailer.

To Find :

The greatest number of 40-pound crates that can be loaded onto the trailer.

Solution :

Weight left = 1050 - 80 = 970 pound.

Let, number of 40 pounds crates that can be loaded are x.

x  = \dfrac{970}{40}\\\\x = 24.25

Since, crate cannot be in fraction, so maximum crate that can be loaded is 24.

Hence, this is the required solution.

7 0
3 years ago
Other questions:
  • Question 3 (0.5 points)
    7·1 answer
  • How far will lava flow travel in 1 hour if the lava flow moves about 93 meters in 1.5 hours
    14·2 answers
  • What can 8 and 6 both go into equally
    14·1 answer
  • Garth got 117 votes in the class election. 240 people voted. What percent of all the votes did he get?
    14·1 answer
  • If h(x) = 5 x and k(x)=1/x, which expression is equivalent to (koh)(x)?
    12·2 answers
  • John is cooking 234 pounds of chicken. He is making a dinner for 8 people, including himself. If everyone gets an equal amount,
    13·1 answer
  • PLEASE HELP! WILL GIVE BRAINLIEST!
    14·1 answer
  • (2k+11)<br> 131°<br> What is the value of k
    13·2 answers
  • Find the area of the rectangle. ​
    5·1 answer
  • A catering company provides packages for weddings and for showers. The cost per person for small groups
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!