AS Further Maths- Edexcel
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How do you work out E(X) of a discrete random variable? | show 🗑
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| How do you work out E(X²) of a discrete random variable? | show 🗑
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| Var(X) = | show 🗑
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| E(aX+b) = | show 🗑
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| E(X+Y) = | show 🗑
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| Var(aX+b) = | show 🗑
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| X~Po(λ). P(X=x) = | show 🗑
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| What are the three condition needed for the Poisson distribution to be suitable? | show 🗑
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| show | 11
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| X~Po(λ). E(X)= | show 🗑
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| show | λ
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| show | np
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| X~B(n,p). Var(X)= | show 🗑
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| show | X~Po(2) as n is large and p is small
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| What are the hypothesise for a hypothesis test for the mean of a Poisson distribution? | show 🗑
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| show | 1 region 1 value
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| How many critical regions/values does H1: λ ≠ 3 have? | show 🗑
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| show | H0- There is no difference between the observed and the theoretical distribution
H1- There is a difference between the observed and the theoretical distribution
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| show | How well an observed frequency fits to a known distribution
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| show | Σ (Oi² / Ei) - N
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| χ² can approximate X² as long as... | show 🗑
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| Degrees of freedom= | show 🗑
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| show | 1) A limited sample was used
2) A value was calculated beforehand
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| What dictates which χ² you use? | show 🗑
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| X² > χ² then... | show 🗑
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| show | accept H0
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| show | (row total x column total) / grand total
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| show | No. cells remaining after removing last row and column
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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.
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Created by:
XanderMoore
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