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
Basile [38]
2 years ago
6

Every year, more than 100,000 testers take the Law School Admission Test (LSAT). One year, the scores had a mean and standard de

viation of approximately 151 and 9 points, respectively. Suppose that in the scoring process, test officials audit random samples of 36 tests, which involves calculating the sample mean score x/bar. Calculate the mean and standard deviation of the sampling distribution of x/bar
Mathematics
1 answer:
worty [1.4K]2 years ago
4 0
It’s a 420 jo Biben social credits. Ask John cena for more anwsers
You might be interested in
Sandy has 28 pencils and 72 erasers. She wants to make the greatest number of bags that have the same number of pencils and eras
aalyn [17]

Answer:

she can make a maximum of 4 bags.

peach bags containing 7 pencils and 18 erasers.

Step-by-step explanation:

find all the factors each numbers are divisible by:

28 => 1, 2, 4, 7, 14, 28

72 => 1, 2, 3, 4, 8, 9, 18, 24, 36, 72

choose the maximum common denominator.

7 0
3 years ago
Read 2 more answers
From a group of 12 students, we want to select a random sample of 4 students to serve on a university committee. How many combin
borishaifa [10]

Answer:

495 combinations of 4 students can be selected.

Step-by-step explanation:

The order of the students in the sample is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

How many combination of random samples of 4 students can be selected?

4 from a set of 12. So

C_{n,x} = \frac{12!}{4!(8)!} = 495

495 combinations of 4 students can be selected.

8 0
3 years ago
John Gray bought a basic car for $32,750.00, with options that cost $375.00. There's a 6% sales tax in his state and a combined
alukav5142 [94]
$32,750.00 + $375.00 = $33,125.00
6% of that is $1,987.50 (33,125 x 0.06)
$1,987,50 + $33,125 + $50= 
$35,162.50
8 0
3 years ago
Read 2 more answers
Juan wrapped 2 presents every 16 hours. At that rate, how long, in
maks197457 [2]

Answer:

Since it took Juan 16 hours to wrap 2 presents, it will take Juan 32 hours.

1 present- 8 hours

2 present- 16 hours

3 present- 24 hours

4 present- 32 hours

5 0
1 year ago
Read 2 more answers
confirm or disprove ernest's work by selecting two different points and applying the slope formula. be sure to identify the poin
yan [13]

Answer:

Part a) Ernest's calculation was correct

Part b) Ernest's calculation was correct

Step-by-step explanation:

The picture of the question in the attached figure

<u><em>The complete question is</em></u>

Ernest calculated the slope of the graph during the uphill climb to be 10. His work is shown below.

Points: (60.900). (15, 450)

Slope : 900-450/60-15=450/45=10

Part a) Determine whether his calculation was correct or incorrect, and then explain why.

Part b) Confirm or disprove Ernest's work by selecting two different points and applying the slope formula. be sure to identify the points you chose

Part a)

we know that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have the points

A(60,900),B(15,450)

Remember that

m_A_B=m_B_A

step 1

Find m_A_B

substitute in the formula

m_A_B=\frac{450-900}{15-60}\\\\m_A_B=\frac{-450}{-45}=10

step 2

Find m_B_A

substitute in the formula

m_B_A=\frac{900-450}{60-15}\\\\m_B_A=\frac{450}{45}=10

therefore

Ernest's calculation was correct, because m_A_B=m_B_A

Part b) selecting two different points

we take the points

(0,300) and (50,800) -----> see the attached figure

substitute in the formula of slope

m=\frac{800-300}{50-0}

m=\frac{500}{50}

m=10

therefore

Ernest's calculation was correct

8 0
3 years ago
Other questions:
  • Please Help? A circle has an arc length of 5π in. The central angle for this arc measures π/3 radians. What is the area of the a
    9·1 answer
  • Are these fractions equivalent or nonequivalent?<br> 2/9 4/18
    7·1 answer
  • PLEASE HELP PLEASE SHOW WORK THANK YOU SOO MUCH THIS REALLY HELPED 20 POINTS!!!!!!
    7·2 answers
  • Tony is evaluating his retirement savings. He currently has $318,000 in his account which earns an interest rate of 7% compounde
    8·1 answer
  • What is the scale factor of the dilation?<br> 2<br> 3<br> 1/2<br> 1/3
    14·2 answers
  • 2 1/2x 1/4 can somone please help me with this question please?
    15·2 answers
  • The function g(x) is a transfomation of the function f(x). If g(x) = 2(x – 3) 2
    13·2 answers
  • Show all work to identify the asymptotes and zero of the function f of x equals 6 x over quantity x squared minus 36.
    13·1 answer
  • Is (-2 , 3) a solution of the graphed inequality?
    11·1 answer
  • Mary used Delicious (d) and Golden Delicious (g) apples to make homemade applesauce. Delicious apples are $0.75 each and Golden
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!