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
Lerok [7]
3 years ago
13

Hey! i’ll give brainliest please help

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

B

Step-by-step explanation:

You might be interested in
Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________
Tresset [83]

Using the normal distribution, it is found that the correct option is:

  • D. 1; 100

In a <em>normal distribution</em> with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.

In this problem:

  • The mean on the Wechsler Scale is of 100, hence \mu = 100.
  • The standard deviation is of 17, hence \sigma = 17.
  • Brianna had an score of 117, hence X = 117

Then:

Z = \frac{X - \mu}{\sigma}

Z = \frac{117 - 100}{17}

Z = 1

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0
3 years ago
Find the value of x such that the data set has a mean of 103.<br><br> 99,122,103,113,109,x
Mashcka [7]
That means the average of all data point equal:

(99+122+103+113+109+x)/6 = 103
===> (546+x)/6 = 103===> 546+x=618 & x=618-546=72, so x =72
8 0
3 years ago
Find the absolute maximum and minimum of the function f(x,y) = x^2 + y^2 subject to the constraint x^4 + y^4 = 81. as usual, ign
borishaifa [10]
X^4+y^4=81

there are 2 solutions

x=0                   x=3
y=3       or          y=0
 
f(x,y)=3^2+0^2=9 is a constant who has the graph  a line || Ox 


8 0
3 years ago
Evaluate the expressions 12(8-5)
saveliy_v [14]

Answer:

36

Step-by-step explanation:

First you would solve what's in the parenthesis because the Order of Pemdas.

Second you would multiply the answer of what's in the parenthesis which is 3 to 12.

Third you would get the answer which is 36!

8 0
4 years ago
Read 2 more answers
Which situation can be represented by the equation, 7x + 1 = 10x ? *
eduard
It is letter C (look carefully)
8 0
2 years ago
Other questions:
  • Harry's soccer team is trying to raise $2520 to travel to a tournament in Florida, so they decided to host a pancake breakfast.
    7·1 answer
  • What does the problem equal. show your work. <br><br>8(3a+6)=9(2a-4)
    8·2 answers
  • F(x) = x² + 7<br> X(-2) =
    15·1 answer
  • Lily Quinn makes $12.50 and hour. She works four hours on Monday, six hours on Tuesday, nine hours on Wednesday, three hours on
    7·2 answers
  • 48 oz. for $3.99<br>36 oz. for $2.59<br>12 oz. for $1.99<br>which is the best deal<br>​
    15·2 answers
  • If 1 pound of candy is 3.50 how much candy can you get with one dollar?
    7·2 answers
  • Someone help me with this if you can
    15·1 answer
  • If a carpet is advertised at $20 per square yard, what is the cost per square foot?
    7·1 answer
  • Can someone help me with this i have been trying for hours and i actually got the wrong answer so can you help me understand by
    10·2 answers
  • Khloe bought 13 chicken wings for $14.30. If Khloe spent $19.80, how many chicken wings did she buy?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!