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
Vinil7 [7]
2 years ago
6

Which of the following describes the probability distribution below?

Mathematics
2 answers:
7nadin3 [17]2 years ago
8 0

Answer:

Answer: A.) The mean is greater than the median, and the majority of the data points are to the left of the mean.

It is clear that most of the data (around 75%) is consist of value 1, which is the leftmost part of the data. Since it was more than 50% of the data, the median should be 1.

if 75% data is 1, it need 25% data with value at least 5 to make the means equal to 2. The means would be bigger than 1 but less than 2, so most(75% data is 1) of the data would be on the left of the mean.

scoray [572]2 years ago
7 0

Answer: First one is negatively skewed,second one is less than the median, last one is greater than the median. yw:)))

Step-by-step explanation:bc i said so

You might be interested in
Help please! 15 points
Yanka [14]

Answer:

the answer is 23. even tho it says he had 30 at the time you must subtract 7 because thats what he started with. hope i could help! :D

Step-by-step explanation:

7 0
3 years ago
What are rights a teacher has
Lorico [155]

Answer:

Teachers have the right to be free from discrimination based on race, sex, and national origin. As well as freedom of expression, academics, privacy, and religion.

Good luck! Hope this helped :)

3 0
3 years ago
Read 2 more answers
Does the ratio 15/12 and 5/4 form a proportion?
Tanya [424]

Answer:

yes

Step-by-step explanation:

5 times 3 is 15 and 12 and 15 and 12 divided  by  3 you will get 5/4

4 0
3 years ago
Exhibit 9-2 The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the cu
Diano4ka-milaya [45]

Answer:

At a .05 level of significance, it can be concluded that the mean of the population is significantly more than 3 minutes.

Step-by-step explanation:

We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.

At the null hypothesis, we test if the mean is of at most 3 minutes, that is:

H_0: \mu \leq 3

At the alternative hypothesis, we test if the mean is of more than 3 minutes, that is:

H_1: \mu > 3

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

3 is tested at the null hypothesis:

This means that \mu = 3

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minute.

This means that n = 100, X = 3.1, \sigma = 0.5

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{3.1 - 3}{\frac{0.5}{\sqrt{100}}}

z = 2

P-value of the test and decision:

The p-value of the test is the probability of finding a sample mean above 3.1, which is 1 subtracted by the p-value of z = 2.

Looking at the z-table, z = 2 has a p-value of 0.9772.

1 - 0.9772 = 0.0228

The p-value of the test is of 0.0228 < 0.05, meaning that the is significant evidence to conclude that the mean of the population is significantly more than 3 minutes.

6 0
3 years ago
A rectangular prism has a length of 12.5 ft, and a width of 9ft , and a height of 6.5 feet. what is the volume of the prism
vagabundo [1.1K]

Answer:

731.25

Step-by-step explanation:

12.5 times 9 times 6.5 =

731.25

7 0
2 years ago
Other questions:
  • PLEASE HELP ASAP
    11·2 answers
  • Algebra is not something I'm good at
    6·1 answer
  • If you are using this figure to prove the isosceles triangle theorem which of the following would be the best strategy
    12·1 answer
  • A bird is flying northeast. In the same time it flies 3/5 mile east, it flies 5/6 mile north. How many miles does the bird fly e
    9·1 answer
  • Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.
    11·2 answers
  • Help 10 points thx!! i will mark first person that answers branliest no joke
    14·2 answers
  • Standard slope intercept form simplify all fractions <br> 2y-4x=-16
    5·1 answer
  • The figure above shows a circle with center Cand
    8·1 answer
  • Quintin read a report claiming that 4% of police officers in the US have had a formal complaint filed
    11·1 answer
  • A motorcycle starts from rest . If its gain an acceleration of 2m/s^2 in 5 second , Calculate the final velocity.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!