Statistics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
---|---|---|---|---|---|
Define population | show 🗑
|
||||
show | Some subset of the population intended to represent the population
🗑
|
||||
Define sampling unit | show 🗑
|
||||
Define sampling frame | show 🗑
|
||||
show | Data collected from the entire population
🗑
|
||||
Define simple random sample | show 🗑
|
||||
show | -No bias
-Easy
-Cheap
-Equal selection chance
🗑
|
||||
Disadvantages of simple random sample | show 🗑
|
||||
Define systematic sample | show 🗑
|
||||
Advantages of systematic sample | show 🗑
|
||||
Disadvantages of systematic sample | show 🗑
|
||||
Define stratified sample | show 🗑
|
||||
show | -Reflects population structure
-Proportional representation within population
🗑
|
||||
show | -Population clearly classified into strata
-Selection within strata suffer from same disadvantages as simple random
🗑
|
||||
Define quota sample | show 🗑
|
||||
Advantages of quota sample | show 🗑
|
||||
show | -Can introduce bias
-Population divided into groups
-Non responses not recorded
🗑
|
||||
Define opportunity sample | show 🗑
|
||||
show | -Easy
-Cheap
🗑
|
||||
Disadvantages of opportunity sample | show 🗑
|
||||
show | Strata size x sample size/total population
🗑
|
||||
show | Qualitative- Descriptive
Quantitative- Numerical
🗑
|
||||
What is the difference between discreet and continuous data | show 🗑
|
||||
How do we find outliers | show 🗑
|
||||
show | Removing outliers
🗑
|
||||
What do we plot for cumulative frequency diagrams | show 🗑
|
||||
show | Frequency density=(Frequency x k)/Class width
🗑
|
||||
When do we use a histogram | show 🗑
|
||||
When do we use a bar chart | show 🗑
|
||||
What do we comment on when comparing data | show 🗑
|
||||
What axis is the independent variable on | show 🗑
|
||||
show | Y
🗑
|
||||
show | There are pairs of values for two variable
🗑
|
||||
Define causal relationship | show 🗑
|
||||
show | Estimating a variable within the data range
🗑
|
||||
Define extrapolation | show 🗑
|
||||
What is the purpose of a regression line | show 🗑
|
||||
show | For data within the data range
🗑
|
||||
Define mutually exclusive | show 🗑
|
||||
If events are mutually exclusive: P(A or B)= | show 🗑
|
||||
show | One event has no effect on the other
🗑
|
||||
If events are independent P(A and B)= | show 🗑
|
||||
show | A variable whose value depends on the outcome of a random event
🗑
|
||||
Define discreet uniform distribution | show 🗑
|
||||
ΣP(X=x)= | show 🗑
|
||||
show | -Fixed no of trials(n)
-2 possible outcomes
-Fixed probability of success (P)
-Trials are independent of each other
🗑
|
||||
show | P(X≤Y-1)
🗑
|
||||
show | 1-P(X≤Y-1)
🗑
|
||||
show | 1-P(X≤Y)
🗑
|
||||
Define test statistic | show 🗑
|
||||
Define null hypothesis | show 🗑
|
||||
Define alternate hypothesis | show 🗑
|
||||
Define critical region | show 🗑
|
||||
Define critical value | show 🗑
|
||||
show | The probability of incorrectly rejecting the null hypothesis
🗑
|
||||
show | -Formulate a model for test statistic
-Identify suitable null and alternate hypotheses
-Calculate the probability of test statistic being observed assuming null hypothesis is true
-Compare to significance level
-Write conclusion in context of question
🗑
|
||||
What must you do for a two tailed hypothesis test | show 🗑
|
||||
If y+ax^n then logy= | show 🗑
|
||||
show | logk+xlogb
🗑
|
||||
What does the PMCC describe | show 🗑
|
||||
When can the PMCC be used | show 🗑
|
||||
show | H0: p=0
H1: p≠0
🗑
|
||||
show | P(P|A)
🗑
|
||||
What is the rule for independent events and conditional probability | show 🗑
|
||||
show | P(A∪B)
🗑
|
||||
show | P(B|A)
🗑
|
||||
What are the probability symbols for and and or | show 🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Liam P
Popular Math sets