How to solve Mean and Median using these formulas?
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
How to solve
![](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8b12ae8a-464a-462c-a4e6-ac9273ead244%2Ff8fa426b-06c5-478f-8c4c-f72b37e150ea%2Fpjqbad.jpeg&w=3840&q=75)
![Complete the table below then find what is asked for: Upload your answer here.
Ages of Consumers
fx
Class Limits
f
CB
Rf
<cf
>cf
37 -39
3
38
114
36.50-39.50
0.10
10.00
3.
31
40 - 42
6.
41
246
39.50-42.50
0.19
19.00
9.
28
43 - 45
46 - 48
10
44
440
42.50-45.50
0.32
32.00
19
22
47
235
45.50-48.50
0.16
16.00
24
12
49 -51
4
50
200
48.50-51.50
0.13
13.00
( 28
52 - 54
2
53
106
51.50-54.50
0.07
7.00
30
55 -57
1
56
56
54.50-57.50
0.03
3.00
31
i = 3
n = 31
Σfx 1,397
LCB UCB
1.00
100
Find the following:
1. Mean=
Efx
x = -](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8b12ae8a-464a-462c-a4e6-ac9273ead244%2Ff8fa426b-06c5-478f-8c4c-f72b37e150ea%2F7deen3c_processed.jpeg&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)