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
Arada [10]
3 years ago
11

I need help on this question

Mathematics
2 answers:
Setler79 [48]3 years ago
5 0

Answer:

4/5

Step-by-step explanation:

Because Z is the same things as X and so it would be 4/5

also bc im smart uwu

UNO [17]3 years ago
5 0
Answer: 4/5
let me know if it’s correct
You might be interested in
The graph of the function f(x) = (x - 4)(x + 1) is shown
Ostrovityanka [42]
What are the statements?
4 0
3 years ago
A popular soft drink is sold in 2-liter (2000 milliliter) bottles. Because of variation in the filling process, bottles have a m
andrezito [222]

Answer:

a) 0.27% probability that the mean is less than 1995 milliliters.

b) 2002.3 milliliters or more will occur only 10% of the time for the sample of 100 bottles.

Step-by-step explanation:

To solve this problem, it is important to understand the normal probability distribution and the central limit theorem

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, 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 random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 2000, \sigma = 18

A) If the manufacturer samples 100 bottles, what is the probability that the mean is less than 1995 milliliters?

So n = 100, s = \frac{18}{\sqrt{100}} = 1.8

This probability is the pvalue of Z when X = 1995. So

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

By the Central Limit Theorem

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

Z = \frac{1995 - 2000}{1.8}

Z = -2.78

Z = -2.78 has a pvalue of 0.0027

So 0.27% probability that the mean is less than 1995 milliliters.

B) What mean overfill or more will occur only 10% of the time for the sample of 100 bottles?

This is the value of X when Z has a pvalue of 1-0.1 = 0.9.

So it is X when Z = 1.28

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

1.28 = \frac{X - 2000}{1.8}

X - 2000 = 1.8*1.28

X = 2002.3

2002.3 milliliters or more will occur only 10% of the time for the sample of 100 bottles.

3 0
3 years ago
1.)<br> What is the solution to the system of equations below?<br> y = 2x + 8<br> 3(-2x + y) = 19
-BARSIC- [3]

Answer:

y = 2x + 8

6x + 3y = 19

6x + 3(2x + 8) = 19

6x + 6x + 24 = 19

12x = -5

x = -5/12

y = 2(-5/12) + 8

y = -5/6 + 48/6

y = 43/6

3 0
3 years ago
Help pls pls I really need help
Misha Larkins [42]
C is correct bc if you add 10 to x you get the value of y
5 0
3 years ago
Read 2 more answers
34 is a multiple of 4.<br> true or false?
Alex73 [517]
False

Multiples of 4: 

4,8,12,16,20,24,28,32,36
8 0
3 years ago
Other questions:
  • What is 74 multiply by 65?
    14·1 answer
  • 1.Explain how to find equivalent fractions for 9/12<br> 2.Explain how to simplify 16/24
    8·1 answer
  • Lurinda ordered some boxes of greeting cards online the cost of the cards is $6.50n+$3where n is the number of boxes ordered and
    8·1 answer
  • On the first day of the food drive, Mrs. Teasley's classes brought in 6 cans of fruit, 4 cans of beans, 7 boxes of noodles, and
    6·2 answers
  • mr. Nolan's code for ATM card is a four digit number. the digits of the code are prime factors of 84 listed from least to greate
    13·1 answer
  • John earns a point on 75% of his free-throw tries during basketball practice. If John takes 76 free-throw shots during practice,
    11·2 answers
  • Write and solve a proportion to answer the question.<br><br> 34 is 60% of what number?
    9·1 answer
  • Alejandro wants to rent an apartment that costs $795 a month. They want $25 for a
    6·1 answer
  • 12 The diameter of a circle is 24 cm. Its radius is
    13·1 answer
  • -21 = 4x + 7 <br> It's those 2 step equations please explain how to do it thank you.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!