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
charle [14.2K]
3 years ago
13

The population of scores on the SAT forms a normal distribution with μ =500 and σ = 100. If you take a random sample of n =100 w

hat is the probability that the sample mean will be greater than M = 520
Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0
P(M > 520) = 1 - P(M < 520) = 1 - P(z < (520 - 500)/(100/sqrt(100))) = 1 - P(z < (20/(100/10))) = 1 - P(z < 20/10) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275
You might be interested in
The base of a cylindrical
KengaRu [80]

Answer:

Step-by-step explanation:

3 0
2 years ago
What is the answer for 14g &gt; 56?
gulaghasi [49]

G > 4

i hope this helps

4 0
3 years ago
Read 2 more answers
Hi! i don’t really understand this question. if someone could help me i’d appreciate it!
Shkiper50 [21]

Answer:

Step-by-step explanation:

cute it into separate parts then add the areas together

3 0
3 years ago
How many different anagrams can you make for the word MATHEMATICS?
Alex73 [517]

Answer:

4989600

Step-by-step explanation:

The given word is MATHEMATICS

Number of letters in the given word is 11

there are 2 M's, 2 A's and 2 T's

the given word is arranged in 11! ways

three letters are repeating, so we divide by repeating occurrences

number of different arrangements =\frac{11!}{2!2!2!}

= 4989600

7 0
3 years ago
In the center of town there is a square park with an area of 900 square feet. If Stephen walks from one corner of the park to th
Vedmedyk [2.9K]

The distance walked by Stephen is 42.42 feet

<h3><u>Solution:</u></h3>

Given that In the center of town there is a square park with an area of 900 square feet

Stephen walks from one corner of the park to the opposite corner

To find: Distance walked by Stephen

We need to find the distance that the person walk from one corner of the park to the opposite corner.

So, we need to find the Diagonal of the square park

<em><u>The diagonal of square is given as:</u></em>

\text{ Diagonal } = \sqrt{2} \times \text{ side}

Let us find the length of side of square

Given area of square = 900 square feet

<em><u>The area of square is given as:</u></em>

area = (side)^2\\\\900 = (side)^2

Taking square root on both sides,

side = \sqrt{900} \\\\side = 30

Thus length of each side of square is 30 feet

<em><u>Therefore, length of diagonal is given as:</u></em>

diagonal = \sqrt{2} \times 30\\\\diagonal = 1.414 \times 30 = 42.42

Hence, the distance that the person walks 42.42 feet

3 0
3 years ago
Other questions:
  • A wildlife service wanted to estimate the number of alligators in a river so they tagged 90 alligators and released them back in
    15·1 answer
  • A cup of coffee at 181 degrees is poured into a mug and left in a room at 66 degrees. After 6 minutes, the coffee is 139 degrees
    13·1 answer
  • 2. Which of these values is the GREATEST?<br><br> 63/7<br> 450%<br> 8.99<br> -22
    7·1 answer
  • What’s the answer to this problem
    13·1 answer
  • Is one for greater than listen or equal to 0.4
    9·1 answer
  • You own a flower shop. You regularly order roses and carnations and want to check the pricing. You cannot find the pricing infor
    8·1 answer
  • 4. If point, A=(2,0) and B=(6,6) then the equation of line AB is: *
    8·1 answer
  • Un estudiante obtuvo las siguientes calificacion 5,7_6,2_4,6 obteniendo un promedio 5 calificaciones¿que nota obtuvo en la ultim
    12·1 answer
  • Each of the 18 students in Mr. Hall's class has
    15·2 answers
  • Christian earned $475 from mowing lawns last summer. He deposited this money in an account that pays an interest rate of 3.8% co
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!