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
Sveta_85 [38]
2 years ago
9

Water bottles are sold in cases of 24. Select the expressions that can represent the total number of water bottles in c cases

Mathematics
1 answer:
k0ka [10]2 years ago
3 0

Answer:

Step-by-step explanation:

24 X c,

24 ÷ c,

24 + c,

24 - c,

24c

You might be interested in
V
Alisiya [41]

Answer:

12000000000000

Step-by-step explanation:

4 0
3 years ago
Andrew plans to retire in 32 years. He plans to invest part of his retirement funds in stocks, so he seeks out information on pa
Debora [2.8K]

Answer:

a) 0.0885 = 8.85% probability that the mean annual return on common stocks over the next 40 years will exceed 13%.

b) 0.4129 = 41.29% probability that the mean return will be less than 8%

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean 8.7% and standard deviation 20.2%.

This means that \mu = 8.7, \sigma = 20.2

40 years:

This means that n = 40, s = \frac{20.2}{\sqrt{40}}

(a) What is the probability (assuming that the past pattern of variation continues) that the mean annual return on common stocks over the next 40 years will exceed 13%?

This is 1 subtracted by the pvalue of Z when X = 13. So

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

By the Central Limit Theorem

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

Z = \frac{13 - 8.7}{\frac{20.2}{\sqrt{40}}}

Z = 1.35

Z = 1.35 has a pvalue of 0.9115

1 - 0.9115 = 0.0885

0.0885 = 8.85% probability that the mean annual return on common stocks over the next 40 years will exceed 13%.

(b) What is the probability that the mean return will be less than 8%?

This is the pvalue of Z when X = 8. So

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

Z = \frac{8 - 8.7}{\frac{20.2}{\sqrt{40}}}

Z = -0.22

Z = -0.22 has a pvalue of 0.4129

0.4129 = 41.29% probability that the mean return will be less than 8%

8 0
2 years ago
(x³-3x²+2x+1/x²-4x+4)dx(dx/Dy)+(x²+4y-y²)/(²√4y+y²) solve for dx/dy<br><br>​
Furkat [3]
It’s 22/3 I think so that’s the answer
4 0
3 years ago
At Mr. Clark's shop, his employees work 20 hours each week and
finlep [7]

Answer:

B if there is an N at the end or beginning of it, Not sure if it cut off or not.

Step-by-step explanation:

Well you would need to do 20(7) to get 140, then multiply that to N. I would say B because I'm assuming you're missing out on some part of it, if it is N at the beginning or end then it is B.

5 0
2 years ago
What is the slope of y=-x perpendicular to the equation
tensa zangetsu [6.8K]

\frac{1}{2} x

7 0
2 years ago
Other questions:
  • Can anyone help me with number 6 &amp; 8?
    15·2 answers
  • An investor has purchased 1,000 shares of stock at a price of $10 per share. The stock pays no dividends, and historically has a
    11·1 answer
  • Each of the angles of an isosceles triangle is twice as large as the third angle . What is the measure of each angle ?
    11·1 answer
  • What is 3/8 times 2/9? Answers: A 5/17 B 5/12 C 1/17 D 1/12
    5·1 answer
  • PLEASE SOMEONE DO THE QUESTION FOR ME PLS ILL GIVE BRAINLIEST!!
    6·2 answers
  • Please help with this question
    8·1 answer
  • Which equation represents the graph?
    13·1 answer
  • What divided by three equals 6
    8·2 answers
  • Equation:
    8·1 answer
  • PMDAS<br> SHOW YOUR SULUTION <br><br>2. 12-8 + 4 + 9x (40 + 4)<br><br> 3. (18 - 9) * 4 + 8 +35 - 5​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!