<< Chapter < Page Chapter >> Page >
  • Card 12 / 20:
    Suppose that 600 thirty-year-olds were surveyed to determine whether or not there is a relationship between the level of education an individual has and salary. Conduct a test of independence.

    Alpha: 0.05

  • Keyboard Shortcuts

    Previous Card ← Previous Card Button
    Next Card → Next Card Button
    Flip Card // Return / Space

Questions & Answers

what is statistics
ADAM Reply
can anyone explain it better for me
frequency distribution
Wasim Reply
noun STATISTICS a mathematical function showing the number of instances in which a variable takes each of its possible values.
Common language-- taking a bunch of information and seeing if it is related or not to other info
Does standard deviation have measuring unit?
yes, the measuring unit of the data you are looking at, for example centimetres for height.
is that easy to plot a graph between three axis?
yes we can but we do not have that much effective tools. If the graph is normal or less complicated then it is plotted effectively otherwise it will give you nightmare.
whats the difference between discrete and contineous data
Discrete variables are variables that can assume finite number of values. Continuous variables are variables that can assume infinite number of values
i will give you an example: {0,4,84} it contains discrete or limited values like it can also contain boolean values{true,false} or {0,1} and continuous are like {1,2,3,4,5......} , {0,0.1,0.2,0.3,0.4...........}
a no. of values which are countable are called discrete variables on the other hand, a no. of values which are not countable are called continuous variables
Yup, I would like to support Mr.Umair's argument by saying that it can only apply if we have a 3-D graph,otherwise a plane graph will not apply at all
Aliya and Mike thnks to both of you ❤❤
what's variance
Sulaiman Reply
what's case control study?
what is covariance
Florence Reply
In probability theory and statistics, covariance is a measure of the joint variability of two random variables.[1] If the greater values of one variable mainly correspond with the greater values of the other variable, and the same holds for the lesser values, (i.e., the variables tend to show simila
Economics department, faculty of social sciences, NOUN. You are required to calculate: the covariance and State whether the covariance is positive or negative. (11½ marks) Observation E D 1 15 17.24 2 16 15.00 3 8 14.91 4 6 4.50 5 15 18.00 6 12 6.29 7 12 19.23 8 18 18.69 9 12 7.21 10 20 4
In probability theory and statistics, covariance is a measure of the joint variability of two random variables.
what is the purpose of statistics and why it is important that statistics to be a solo and one complete field?
Edu-info Reply
to organize,analyze and interpret information in order to make decision
what is noun?
Katama Reply
so simple. the name of any person,place or thing.
Using the Chi-square test, two coins were flipped a hundred times. What will be the chances of getting a head and getting a tale? Given observed values is 62 heads and 38 tails. Expected value is 50 heads, 50 tails. Is the difference due to chance or a significant error? a. Draw your hypothesis
DokBads Reply
how can I win
Jagogo Reply
what is difference between the blocking and confounding
Rukhsana Reply
how do you get 2/50 ?
CL Reply
can you explained it for me
an easier definition of inferential statistics
Kenedy Reply
Inferential statistics makes inferences and predictions about a population based on a sample of data taken from the population in question.
Inferential statistics helps you to extract insights from a random sample data which then helps you to use specific predictive Modeling/machine learning technic to predict or forecast.
what is stemplot? can anyone explain?
what is statistics
ernest Reply
what is collection of data
no collection data was provided just the mean =14
sd=14 describe the position of score to the mean how many points below or above z=1.00 z=1.50
I have this sample score 14 18 12 22 14 22 21 20 13 26 13 26 16 21 they want me to.compute the z- score of x= 15 ×=40 and x=9?
how do you understand that it is the mean?
fact and figure
factors to consider when using secondary data
Edmond Reply
define binomial distribution
Samuel Reply
the distribution in which the outcome is of dichotomous
can you tell me Standar division is =14 what is the position of the score relative to the mean how many point above/below the mean?
What do you call a measure of central tendency (i.e., average) appropriate for data measured on the continuous scale
DokBads Reply
arithmetic mean

Get the best Introductory statistics course in your pocket!

Source:  OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
Flash Cards plugin by Curtis Blackwell github.com/curtisblackwell/flash_cards
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Introductory statistics' conversation and receive update notifications?