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
KatRina [158]
3 years ago
15

A normal distribution has a mean of 75 and a standard deviation of 10 use the standard normal table to find the probability that

a randomly selected X value from the distribution is less than or equal to 50
A. -2.5
B. 0.0062
C. 0.9938
D. 2.5
Mathematics
1 answer:
-BARSIC- [3]3 years ago
7 0

Answer:

0.006

Step-by-step explanation:

We are actually looking for the area under the standard normal curve to the left of 50.  The proper distribution function on my old TI calculator is normalcdf(:

normalcdf(-1000,50,75, 10),

which returns 0.006   (Answer B)

You might be interested in
I suck at math lololol
Dima020 [189]

2 and 4

Step-by-step explanation:

This image shows an example on corresponding angles.

4 0
3 years ago
Read 2 more answers
HELP PLEASE! WORTH 30 POINTS! In this diagram, both polygons are regular. What is the value, in degrees, of the sum of the measu
lara [203]

that is the sum of the interior angles of a triangle,or the 3 sided polygons

8 0
3 years ago
Read 2 more answers
31
Hitman42 [59]

Answer:

L = 3(4) + 2(3) + 6

Step-by-step explanation:

.........

3 0
3 years ago
Kristin's credit rating was lowered, and the credit card company raised her APR from 14% to 15.2%. If her average daily balance
Sloan [31]

Answer:

0.0022x

Step-by-step explanation:

Given that,

The credit card company raised her APR from 14% to 15.2%.

Her average daily balance this month is x dollars.

We need to find the algebraically the increase in this month's finance charge due to the higher APR. It can be calculated as follows :

y=x\times \dfrac{12\%}{14}-x\times \dfrac{15.2\%}{14}\\\\=x\times \dfrac{12}{1400}-x\times \dfrac{15.2}{1400}\\\\=-0.0022x

So, the required increase in the month's finance is 0.0022x.

3 0
3 years ago
Read 2 more answers
What is the key difference between simple interest and compound interest, and how does this difference affect the effectiveness
stealth61 [152]
<h2>Answer:</h2>

The simple interest is calculated only on the principal amount of a loan so it is relatively easier to calculate than the compound interest.

The compound interest is calculated on the principle amount plus the interest that the amount gets per compounding period up to the period of the loan. In other words, in compound interest we get, interest on interest.

This difference between the both, is the reason, we get more money in compound interest than simple one.

Let us take an example-

Suppose the principle is = $5000

r = 5% or 0.05

t = 5 years

Simple interest formula is :

p\times r\times t

=> 5000\times0.05\times5=1250

So, total amount after 5 years will become = 5000+1250=6250 dollars.

-----------------------------------------------------------------------------------------

Lets check for compound interest where the interest is compounded annually.

p = $5000

r = 5% or 0.05

t = 5 years

n = 1

Compound interest formula is :

A=p(1+\frac{r}{n} )^{nt}

A=5000(1+\frac{0.05}{1} )^{5}

=>A=5000(1.05)^{5}

A = $6381.40

--------------------------------------------------------------------------------------------

We can see that we are getting more money in compound interest than the simple interest, for the same amount and same time period.

5 0
4 years ago
Other questions:
  • Decide if the converse is true for the following true conditional statement: "If I am in my kitchen, then I am at home." If it i
    10·2 answers
  • Is 1/2 greater than 4/5
    10·1 answer
  • Find the 32nd term in the sequence whose general term is an = -3 + 4 (n-1)<br><br> Work?
    15·2 answers
  • Suppose a small airplane has a wingspan of 15 feet. Find the wingspan of a model of the airplane, in inches, if the scale factor
    11·1 answer
  • Consider the given data. x 0 2 4 6 9 11 12 15 17 19 y 5 6 7 6 9 8 8 10 12 12 Use the least-squares regression to fit a straight
    11·1 answer
  • 3 1/2 x 2 3/4 divided by 1 1/2
    11·2 answers
  • Which of the following is a solution for x in the equation 5x + 3 = 33?
    10·2 answers
  • Angles a and b are complementary angles symmetry of angle a is 28° more than the measure of angle b find the missing angle measu
    7·1 answer
  • Mhanifa please help im almost done !!
    10·1 answer
  • What function is graphed below???
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!