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
yawa3891 [41]
3 years ago
11

The grade point average in an econometrics examination was normally distributed with a mean of 75. in a sample of 10 percent of

students it was found that the grade point average was greater than 80. can you tell what the standard deviation of the grade point average was?
Mathematics
1 answer:
podryga [215]3 years ago
8 0
<span>No. From the data provided you can not determine what the standard deviation is. In order to determine the standard deviation you need the actual grades not just a mean.</span>
You might be interested in
Does any one know 7,8???
Lady_Fox [76]

Answer:

7. (7^2)(4^2) or 49 * 16

8.18^5

Step-by-step explanation:

7. You can do that or simplify the exponents.

8. When dividing two exponents you can subtract the exponentes. *(note i didn't simplify 18^5 because it said expression, and a simplified number is not an expression.)

5 0
3 years ago
Read 2 more answers
A tutor earns $12.00 plus $4.00 for every hour he works.
inysia [295]

Answer:

64

Step-by-step explanation:

12+4=16

12+4=16

12+4=16

12+4=16

16 x 4 = 64

6 0
3 years ago
Read 2 more answers
Write an inequality to represent the real-world problem. Then complete the statements. Bradley makes less than $8 per hour. The
Zina [86]

Answer:

h

Step-by-step explanation:

If Bradley makes less than $8 per hour.

Let Bradley's hourly rate = h

Therefore, an inequality to represent the real-world problem is:

h

  • The variable in the inequality represents <u>Bradley's hourly rate</u>
  • The inequality symbol needed is <u>Less Than</u>
  • The constant is <u>8</u>
  • The inequality that correctly represents the problem is: h
7 0
3 years ago
What’s the answer to 1.9m + 14 = 2m?
joja [24]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{m = 140}}}}}

Step-by-step explanation:

\sf{1.9m + 14 = 2m}

Move 2m to right hand side and change it's sign

Similarly, move 14 to left hand side and change it's sign

\dashrightarrow{ \sf{1.9m - 2m =  - 14}}

Collect like terms

\dashrightarrow{ \sf{ - 0.1m =  - 14}}

Divide both sides by -0.1

\dashrightarrow{ \sf{ \frac{ - 0.1m} { - 0.1}  =  \frac{ - 14}{ - 0.1}}}

Calculate

\dashrightarrow{ \sf{m = 140}}

Hope I helped!

Best regards! :D

4 0
3 years ago
Help me plzzzzzzzzzzzzzzz
grigory [225]
The lesser number is 30.
It took me about one minute to determine the two numbers by simple logic alone.
30 and 60 are the two numbers.
But, equation-wise, you have ...
30 x 2(30) = 1800
30 x 60 = 1800
8 0
3 years ago
Read 2 more answers
Other questions:
  • Taylor has a $30 gift card that she can spend at the store. She has already bought a $9 picture frame, and she wants to buy $3 j
    9·1 answer
  • Lisha is making headbands using ribbon she would like to make 12 headbands each one requires 15.5 inches of ribbon she estimates
    7·2 answers
  • Common factor of 10 and 20<br>​
    13·1 answer
  • Dots sells T-shirts ($5) and shorts ($8). In April, total sales were $560. People bought 4 times as many T-shirts as shorts. How
    5·1 answer
  • Round to the nearest hundredth:<br><br> 0.631666666666667<br><br> 0.574166666666667
    11·2 answers
  • Ophelia keeps flour in a cylindrical canister. The capacity of the full canister is 75.36 in^3..When it is filled halfway the fl
    14·2 answers
  • Help please asap!!! Thx
    14·1 answer
  • What is the volume of a cone with a height of 27 inches and a radius of 11 inches?
    10·1 answer
  • Help meeeeeeeeeeeeeeeeeeeeeeeeeee
    8·1 answer
  • I need help with this question (answer choices 15, 5, and 12)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!