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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
A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i what is the students mistakes
Rufina [12.5K]

Answer:

1. In the multiplication of the imaginary parts, the student forgot to square of i. OR

2. The student has only multiplied the real parts and the imaginary parts.

Correct value =22+7i.

Step-by-step explanation:

The given expression is

(4+5i)(3-2i)

A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i.

Student's mistake can be either 1 or second:

1. In the multiplication of the imaginary parts, the student forgot to square of i.

2. The student has only multiplied the real parts and the imaginary parts.

(4+5i)(3-2i)=4\times 3+5\times (-2)i=12-10i

Which is not correct. The correct steps are shown below.

Using distributive property, we get

4(3-2i)+5i(3-2i)

4(3)+4(-2i)+5i(3)+5i(-2i)

12-8i+15i-10i^2

12+7i-10(-1)       [\because i^2=-1]

12+7i+10

22+7i

Therefore, the correct value of (4+5i)(3-2i) is 22+7i.

4 0
3 years ago
Gm everyone plz help with this question down below :) Who was Sherlock Holmes?
kenny6666 [7]

Answer:

Sherlock Holmes is a fictional detective created by British author Sir Arthur Conan Doyle. 

7 0
3 years ago
Read 2 more answers
In what form is the following linear equation written?
krok68 [10]

Answer:

<h2>B. Standard</h2>

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

The standard form of an equation of a line:

Ax+By=C

The general fom of an equation of a line:

Ax+By+C

We have the equation 3x - 2y = 4 in standard form.

5 0
3 years ago
Read each statement then select whether it is true or false.
Marina CMI [18]

Answer:

1) true

2) false

3) false

4)True

4 0
3 years ago
Kristin has 4 more headbands than Nikki does. Together they have 30 headbands. The equation h + (h+ 4) = 30 can be used to
mojhsa [17]

Answer:

A) H+4

Step-by-step explanation:

I do this in a different way, but i'll do it in both

Mine:

30 ÷ 2 = 15

4 ÷ 2 = 2

15+2, 15 -2

17, 13

Kristen Has 17

Yours:

h+(h+4)=30

     -4   -4

h+h = 26

2h = 26,

h = 13, Back to the equation, use 13 as a sub. for all the h's

13+(13+4) = 30

13 + 17 = 30

Hope this helps!

3 0
3 years ago
Read 2 more answers
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