Quiz

Discrete random variables

Kashly Cash 7 Fragen

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1To work out the [blank_start]expectation[blank_end] you take each [blank_start]outcome[blank_end] and [blank_start]multiply[blank_end] it by its [blank_start]probability[blank_end]. You then add these up.
1. Aexpectation
2. Bvariance
3. Coutcome
4. Dchoice
5. Emultiply
6. Fadd
7. Gprobability
8. Hr value
2To work out the [blank_start]variance[blank_end] you take each [blank_start]outcome[blank_end] value, [blank_start]square[blank_end] it, then [blank_start]multiply[blank_end] it by the probability value. You add these up together. Then you square the [blank_start]expectation[blank_end] and use it to [blank_start]minus[blank_end] from the previous value.
1. Avariance
2. Bmean
3. Coutcome
4. Doption
5. Esquare
6. Fdivide
7. Gmultiply
8. Hadd
9. Iexpectation
10. Jprobabilities
11. Kminus
12. Lsquare root and then add
3Two four sided dice are thrown with face 1-4. Below is a probability table, fill it in with the probability of the sum of the two dice.
1. A1/16
2. B4/16
3. C3/16
4. D2/16
4What type of distribution is this?
1. ASymmetrical
2. BPositive skew
3. CNegative skew
4. DStandard
5The probability of getting an odd number is: [blank_start]1/2[blank_end].
The probability of getting a number between 1<x≤ 3 is: [blank_start]3/16[blank_end]
1. A1/2
2. B3/16
6P(X=r) = k(6r²-r³) for r=1,2,3,4,5
What is K?

K=[blank_start]1/105[blank_end]
1. A1/105
7Answer the parts to the question
1. Aa= 0.05 b=0.2
2. B0.7
3. C2.27

Beschreibung: AS level Maths (Stats 1) Quiz am Discrete random variables, erstellt von Kashly Cash am 15/02/2017.
Autor: Kashly Cash
Sprache: English
Aufrufe: 2
Schlagwörter: maths stats 1 as level
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