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
RSB [31]
3 years ago
10

Please help

Mathematics
1 answer:
AVprozaik [17]3 years ago
6 0
I personally think it's C I hope it's right if not I'm Sorry
You might be interested in
What is the solution for tgx >=0?
ddd [48]

well, what variable are you solving for? like if you're solving for x, it would be:

tg is greater than or equal to 0x

7 0
2 years ago
Need more help on my homework
trapecia [35]

where is the question?

4 0
3 years ago
Read 2 more answers
Out of a 52 deck of cards what's the probability that you pull a card above a jack
bazaltina [42]

Answer: 3/13

Step-by-step explanation:

There are 12 cards above the jack in a deck of 52 cards

Probability = 12/52 = 3/13

7 0
2 years ago
g Annual starting salaries in a certain region of the U. S. for college graduates with an engineering major are normally distrib
algol13

Answer:

The probability that the sample mean would be at least $39000 is of 0.8665 = 86.65%.

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 $39725 and standard deviation $7320.

This means that \mu = 39725, \sigma = 7320

Sample of 125

This means that n = 125, s = \frac{7320}{\sqrt{125}}

The probability that the sample mean would be at least $39000 is about?

This is 1 subtracted by the pvalue of Z when X = 39000. So

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

By the Central Limit Theorem

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

Z = \frac{39000 - 39725}{\frac{7320}{\sqrt{125}}}

Z = -1.11

Z = -1.11 has a pvalue of 0.1335

1 - 0.1335 = 0.8665

The probability that the sample mean would be at least $39000 is of 0.8665 = 86.65%.

4 0
2 years ago
47 is 10 less than my number.<br> 67 is 10 more than my number.<br> What is my number
-BARSIC- [3]
Your number is 57.
Because....
47 + 10 = 57
67 - 10 = 57
Hope that helps!
4 0
3 years ago
Read 2 more answers
Other questions:
  • Help please!!!!]
    11·2 answers
  • Three gallons of paint are used to paint 16 wooden signs.how much paint did each sign use. Between what two whole numbers does t
    9·1 answer
  • Which terms could be used as the first term of the expression below to create a polynomial written in standard form? Select five
    14·1 answer
  • 50 POINTS I NEED HELP!!!!!! I will mark the brainliest!!!
    14·1 answer
  • Find f(4) if f(x) = 3x + 1
    15·1 answer
  • Jordan is 12 years older than Anna. The
    12·1 answer
  • ✨Could ✨someone✨help ✨me ✨with ✨this? ✨It ✨would ✨be ✨much ✨appreciated✨
    8·2 answers
  • NEED HELP WITH THIS QUESTION ASAP PLEASE!!!!!
    8·1 answer
  • Write and solve a proportion that the teacher can use to estimate how many students in the whole school would choose the aquariu
    11·1 answer
  • Help pls i’ll give brainliest
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!