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
Anastasy [175]
3 years ago
8

While working at his neighborhood math tutoring center researching the comprehension level of the students Dion investigated tha

t the distribution of the student test scores are normally distributed with a mean of 79.13 and a standard deviation of 6.34. What is the probability that the student scores less than 60.11
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

Step-by-step explanation:

While working at his neighborhood math tutoring center researching the comprehension level of the students Dion investigated that the distribution of the student test scores are normally distributed with a mean of 79.13 and a standard deviation of 6.34. What is the probability that the student scores less than 60.11

We solve using z score formula

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

z = 60.11 - 79.13/6.34

You might be interested in
If the point (3/5,4/5) corresponds to an angle theta in the unit circle, what is csc ?
SOVA2 [1]
We have a triangle:
the side opposite the angle Ф is 4/5, 
The side adjacent the angle Ф is 3/5

1) we calculate the hypotenuse, by the Pythagoras Theorem:
h=√[(4/5)²+(3/5)²]=1

2) we calculate the csc of Ф
csc Ф= hypotenuse / opposite side

csc Ф=1/ (4/5)=5/4

Answer: e. 5/4
7 0
4 years ago
Describe the cross section of the rectangular prism
postnew [5]

Answer:

A rectangle

Step-by-step explanation:

The blue shape is a rectangle.

4 0
3 years ago
Read 2 more answers
City planners are creating a 3-dimenslonal model of a city park to find the best placement for a new tennis court the city park
xxTIMURxx [149]

The dimension of the tennis court in the scaled model is 0.6 ft long and 0.3 ft wide.

Given, a rectangular plot of land that is 1,500 ft long and 600 ft wide the scale model of the park measures 7.5 ft x 3 ft.

The actual tennis court must be 120 ft long and 60 ft wide, then we need to find the dimensions of the tennis court in the scale model.

<h3>What is a scaled model?</h3>

A scale model is a physical model which is geometrically similar to an object. Scale models are generally smaller than large prototypes such as vehicles, buildings, or people.

First, divide the original measurements by the scaled ones. We get

1500 ft. ÷7.5 ft = 200

600 ft. ÷ 3 ft. = 200

Now, divide tennis courts actual dimensions by 200. That is

120 ft. ÷ 200 = 0.6 ft

60 ft. ÷ 200 =  0.3 ft

Therefore, the dimension of the tennis court in the scaled model is 0.6 ft long and 0.3 ft wide.

To learn more about scale factor visit:

brainly.com/question/22312172.

#SPJ1

5 0
2 years ago
Simplify the following expression. one-fourth(16 – 12x) (1 point) 4 + 3x 4 – 3x 4 + 3 4 – 3
Bad White [126]

Given expression: 1/4 (16-12x).

Solution: We can see that 1/4 is in front of paranthesis.

That represents multiplication of 1/4 with (16-12x)

In order to 1/4 with (16-12x), we need to distribute 1/4 over (16-12x).

On distributing 1/4 over (16-12x), we get

1/4 (16-2x) = 1/4 * 16 + 1/4 * (-12x).

On multiplying 1/4*16, we get 16/4 and 1/4 * (-12x) = -12x/4.

16/4 could be simplify to 4 and -12x/4 could be simplify to -3x.

So, final answer would be 4 - 3x.

Therefore, second option is our correct option, that is 4 - 3x.

5 0
3 years ago
Help! Will give brainliest! (Whatever it’s called )<br> Thank you!!<br> Find the surface area! :)
ladessa [460]

Answer:

A=777.54

Step-by-step explanation:

What you do is use the formula which is

a=2pirh+2pir^2.

The radius is half the diameter and the diameter is 15 so you take 15 and divide it by 2 to get 7.5.

The height is 9 m.

A=2(3.14)(7.5)(9)+2(3.14)(7.5)^2=777.54 m.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate the following <br><br> -4 + 3 -2
    13·1 answer
  • the pool director has a list of 123 students who have signed up for swimming lessons. the pool director can register 7 students
    8·2 answers
  • Which expression is equivalent to the given expression? 17x−32x x(17−32) x(32−17) 17x(1−32) 17(x−32)
    8·2 answers
  • Andy has $310 in his account. Each week, w, he withdraws $30 for his expenses. Which expression could be used if he wanted to fi
    9·2 answers
  • Can someone help me with this problem please?
    9·1 answer
  • HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!!
    13·1 answer
  • C. Directions: Copy and answer. Write in the circle the final sum of
    5·1 answer
  • 3x^+5x+2=0 <br> need work shown plz
    9·2 answers
  • The average attendance at school for 5 days was 264. If the attendance on the 5th day was 256, calculate the average attendance
    6·1 answer
  • Please answer 5-10 and get brainliest
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!