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
Arturiano [62]
3 years ago
13

The distribution of scores for persons over 16 years of age on a Wechsler Adult Intelligence Scale (WAIS) is approximately norma

l with mean 100 and standard deviation 15. The WAIS is one of the most common \"IQ tests\" for adults.. . a) What is the probability that a randomly chosen individual has a WAIS score of 105 or higher?. b) What are the mean and standard deviation of the average WAIS score x for an SRS of 60 people?. c) What is the probability that the average WAIS score of an SRS of 60 people is 105 or higher?
Mathematics
1 answer:
N76 [4]3 years ago
4 0
Pls. see attachment for the solutions.
Download pdf
You might be interested in
In a recipe, for every tablespoon of sugar there are four teaspoons of salt. If a batch uses twelve tablespoons of sugar, how ma
marysya [2.9K]
4*12= 48
The answer is 48
3 0
3 years ago
Which of the following describes the graph of y=\sqrt[3]{8x-64}-5 compared to the parent cube root function?
andriy [413]
Answer: stretched by a factor of 2 and translated 8 units right and 5 units down

Explanation:

These is the set of choices that accompany with this question:


<span>a) stretched by a factor of 2 and translated 64 units right and 5 units down
b) stretched by a factor of 8 and translated 8 units right and 5 units down
c) stretched by a factor of 2 and translated 8 units right and 5 units down
d) stretched by a factor of 8 and translated 64 units right and 5 units down


Solution:

</span>Let's work a little the given function to compare it with the parent function.

1) The given function is y = ∛[8x - 64] - 5

2) Extract common factor 8 of the expression inside the square brackets:

y = ∛[ 8( x - 8) ] - 5

3) Extract 8 from the root:

y = 2∛(x - 8) - 5

4) The parent function is ∛x. Call the parent function g(x) => g(x) = ∛x

5) Compare: y is 2 * g(x - 8) - 5

6) Analyze the meaning of that:

g(x - 8) means that the graph of the function is translated 8 units to the right

scaling by 2 means that the graph is stretch vertically (by a scale factor of 2)

- 5 means that the entire graph is shifted 5 units downward.

So, the description of the graph y = ∛(8x - 64) - 5 compared to the parent cube root function is: stretched by a factor of 2 and translated 8 units right and 5 units down


5 0
4 years ago
Read 2 more answers
Is the absolute value of ab equal to the absolute value of a divided the absolute value of b?
Serggg [28]
They can be equal if the absolute value of b is 1.
3 0
4 years ago
Read 2 more answers
Solve the system by substitution.<br> y = -3x +4<br> y = x
mafiozo [28]

Answer:

4

Step-by-step explanation:

7 0
3 years ago
You owe $225.45 on your credit card. You make a $55.00 payment on your credit card, and then purchase $87.98 worth of clothes at
zubka84 [21]

Answer:

The balance amount owed on the credit card altogether =  $258.43

Step-by-step explanation:

Here, the current amount owed on the credit card = $225.45

Now, the amount of payment made to the credit card  = $55.00

So, the remaining amount owed =   Current Debt - Paid Amount

                                                         = $225.45  - 55 = $170. 45

Again, the purchase amount at Macy's  = $87.98

⇒ New amount owed on credit card  = Previous Debt + New Purchase

                                                                = $170. 45 +  $87.98 =  $258.43

Hence, the balance amount owed on the credit card  =  $258.43

5 0
4 years ago
Other questions:
  • 17) BRAINLIEST + 15+ POINTS :D
    7·2 answers
  • Bob can cut through a log in 3 minutes. How long will it take him to cut a 25foot log into 5 foot sections?
    15·1 answer
  • A bag contains 43 U.S. quarters and seven Canadian quarters. (The coins are identical in size.) If six quarters are randomly pic
    10·1 answer
  • The topping are nuts hot fudge caramel and sprinkles
    14·1 answer
  • Consider the letters of the word. Which letter has no lines of symmetry? A C T N
    8·1 answer
  • HELP A KID IN NEED
    9·1 answer
  • Simplify 6 over (3 + 3i).
    15·1 answer
  • Find the sum in smiplest form 6\\9 plus 6\9
    8·1 answer
  • I don't get it please help and show me how to do it
    14·1 answer
  • The regular octagon shown is enlarged so that its side are 3 times
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!