




Card 23 / 25:
decay parameter
The decay parameter describes the rate at which probabilities decay to zero for increasing values of x . It is the value m in the probability density function f ( x ) = me ( mx ) of an exponential random variable. It is also equal to m = 1 μ , where μ is the mean of the random variable.

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Questions & Answers
you are working for a bank.The bank manager wants to know the mean waiting time for all customers who visit this bank. she has asked you to estimate this mean by taking a sample . Briefly explain how you will conduct this study. assume the data set on waiting times for 10 customers who visit a bank. Then estimate the population mean. choose your own confidence level.
what marriage for 10 years
fit a least square model of y on x ? what is the regression coefficient ? x : 2 3 6 8 9 10 y : 5 6 7 10 8 11
how can we find the expectation of any function of X?
Jennifer
I've been using this app for some time now. I'm taking a stats class in college in spring and I still have no idea what's going on. I'm also 55 yrs old. Is there another app for people like me?
Tamala
yes I am. it's been decades since I've been in school.
Tamala
is there a private chat we can do
Tamala
hello
how can I get PDF of solutions introduction mathematical statistics ( fourth education)
who can help me
ahssal
simply probability means possibility..
definition:Probability is a measure of the likelihood of an event to occur.
laraib
fit a least square model of y on x ? what is the regression coefficient ? x : 2 3 6 8 9 10 y : 5 6 7 10 8 11
Nayab
classification of data by attributes is called
qualitative classification
talal
tell me details about measure of Dispersion
Halim
Following data provided
Class
Frequency
less than 10 1020
5
15
1030
25
12
40 and above
Which measure of central tendency would you compute and
why?
a box contains a few red and a few blue balls.one ball is drawn randomly find the probability of getting a red ball if we know that there are 30 red and 40 blue balls in the box
Total=30+40=70
P(red balls) =30/70
Therefore the answer is 3/7
Anuforo
define transport statistical unit
describe each transport statistical unit
Dennis
explain uses of each transport statistical unit
Dennis
identify various transport statistical units with their example
Dennis
I didn't understand about Chi square.
explain the concept of data analysis and data processing
the following data represent the number of pop up advertisement received by 10 families during the past month.calculate the mean number of advertisement received by each family during month.43,37,35,30,41,23,33,31,16,21
mean=43+37+35+30+41+23+33+31+16/10
=310/10
=31
Anuforo
43+37+35+30+41+23+33+31+16 divided by 10
=310/10
=31
Anuforo
the following data represent the number of pop up advertisement received by 10 families during the past month.calculate the mean number of advertisement received by each family during month.43,37,35,30,41,23,33,31,16,21
In a recent survey of nurses in Region II, it was found out that the average monthly net income of nurses is Php 8,048.25. Suppose a researcher wants to test this figure by taking a random sample of 158 nurses in Region II to determine whether the monthly income has changed. Supposed further that th
Suppose from the 1,000 freshmen that took the entrance examination, it was found out that the standard deviation was 10
a. How many students passed the test if the passing score is set 75?
b. What scores comprise the middle 95% of all scores?
can you answer my question.
Sweet
Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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