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
NemiM [27]
3 years ago
9

15 percent of what is 12

Mathematics
2 answers:
tia_tia [17]3 years ago
7 0
15% times 12 is 1.8 I hope this the answer
Nesterboy [21]3 years ago
6 0
12 divided by 15 = 160<span />
You might be interested in
a) A large hotel in Miami has 900 rooms (all rooms are equivalent). During Christmas, the hotel is usually fully booked. However
Olegator [25]

Answer:

14.69% probability that this happens

Step-by-step explanation:

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

Normal probability distribution

When the distribution is normal, we use 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 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.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

1000 people were given assurance of a room.

This means that n = 1000

Let us assume that each customer cancels their reservation with a probability of 0.1.

So 0.9 probability that they still keep their booking, which means that p = 0.9

Probability more than 900 still keeps their booking:

n = 1000, p = 0.9

So

\mu = 0.9, s = \sqrt{\frac{0.9*0.1}{1000}} = 0.0095

901/1000 = 0.91

So this is 1 subtracted by the pvalue of Z when X = 0.91.

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

By the Central Limit Theorem

Z = \frac{0.91 - 0.9}{0.0095}

Z = 1.05

Z = 1.05 has a pvalue of 0.8531

1 - 0.8531 = 0.1469

14.69% probability that this happens

3 0
2 years ago
Committee of 7 students is to be formed from 10 ee students, 12 cs students and 8 math students. it is required that at least tw
gtnhenbr [62]
First, You Do 10 and 12 in the parentheses, then subtract 8 and multiply 7.  Then This Equals 146. Hope this helps :)

5 0
3 years ago
I need some more help
Andrew [12]

Answer:

slope: 2/3 intercept is -3

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Find B on AC that is 2/5 of the distance of A to C.
salantis [7]

Answer:

1

Step-by-step explanation:

AC = 5, ao AB = 2.

This means B = -1+2 = 1.

3 0
1 year ago
PLEASE HELP!! 50 POINTS!!!!!
OLEGan [10]

Answer:

3\2 is the marked

y cos x,=2

3\2=0.5

x=0.5*2=3.0

=3.0*2=6.0

6 0
1 year ago
Other questions:
  • How will adding the value 8 affect the mean and median of the data set 4, 6, 8, 10, 12?
    7·2 answers
  • 19. Students at a certain school can enroll in one elective course: painting, theater, choir, or band. This two-way frequency
    14·1 answer
  • −8<br><br> ≥ -5 ???????????????????????????
    15·2 answers
  • What is the equation of the line that passes through the point (6, -6) and has a slope of -5/3?​
    13·1 answer
  • Find the area of the given triangles.
    11·1 answer
  • A net triangular prism is shown.What is the total surface area
    12·1 answer
  • Jenny, Keith, and Joanna participated in a mini-
    9·1 answer
  • David Egil and frances share money in the ratio 2:7:9 Egil gets £85 more than David work out how much they each get ?
    8·1 answer
  • Find the area of the circle to the nearest tenth. Use 3.14 for π.
    14·1 answer
  • Write an equation in slope-intercept form of the line containing the points (3,-1) and (6, 7).
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!