Discrete RV: Mean & Variance Challenge

Froggy Jumps

(4)

Parties jouées 62

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À propos de cette activité

Compute means or variances from given PMFs.

Créé par

Mercedes Matangcas

Philippines

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Froggy Jumps Discrete RV: Mean & Variance ChallengeVersion en ligne Compute means or variances from given PMFs. par Mercedes Matangcas 1 For X with values 1,2,3 and p=0.2,0.5,0.3, what is the mean? a 3.0 b 2.1 c 1.9 2 Given X in {0,1} with p=0.7,0.3, find the variance of X. a 0.21 b 0.07 c 0.30 3 X takes 2,4,6 with p=0.25,0.5,0.25. What is the mean? a 5 b 4 c 3 4 For X in {1,2} with p=0.4,0.6, compute the variance. a 0.40 b 0.14 c 0.24 5 X values 0,2,5 with p=0.2,0.5,0.3. Determine the mean. a 1.5 b 2.5 c 3.0 6 X ∈ {-1,0,1} with p=0.3,0.4,0.3. What is the variance? a 0.6 b 1.0 c 0.3 7 X = {1,3} with p=0.6,0.4. Find the mean. a 1.8 b 2.2 c 1.2 8 X in {2,5,9} with p=0.2,0.5,0.3. Compute the mean. a 5.6 b 4.6 c 6.8 9 X ∈ {0,1,2,3} with p=0.1,0.2,0.4,0.3. Find the mean. a 1.9 b 1.2 c 2.4 10 X ∈ {10,20} with p=0.5,0.5. What is the variance? a 25 b 15 c 20

Froggy Jumps

Discrete RV: Mean & Variance ChallengeVersion en ligne

Compute means or variances from given PMFs.

par Mercedes Matangcas

For X with values 1,2,3 and p=0.2,0.5,0.3, what is the mean?

3.0

2.1

1.9

Given X in {0,1} with p=0.7,0.3, find the variance of X.

0.21

0.07

0.30

X takes 2,4,6 with p=0.25,0.5,0.25. What is the mean?

For X in {1,2} with p=0.4,0.6, compute the variance.

0.40

0.14

0.24

X values 0,2,5 with p=0.2,0.5,0.3. Determine the mean.

1.5

2.5

3.0

X ∈ {-1,0,1} with p=0.3,0.4,0.3. What is the variance?

0.6

1.0

0.3

X = {1,3} with p=0.6,0.4. Find the mean.

1.8

2.2

1.2

X in {2,5,9} with p=0.2,0.5,0.3. Compute the mean.

5.6

4.6

6.8

X ∈ {0,1,2,3} with p=0.1,0.2,0.4,0.3. Find the mean.

1.9

1.2

2.4

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Discrete RV: Mean & Variance Challenge

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Discrete RV: Mean & Variance ChallengeVersion en ligne

par Mercedes Matangcas

For X with values 1,2,3 and p=0.2,0.5,0.3, what is the mean?

Given X in {0,1} with p=0.7,0.3, find the variance of X.

X takes 2,4,6 with p=0.25,0.5,0.25. What is the mean?

For X in {1,2} with p=0.4,0.6, compute the variance.

X values 0,2,5 with p=0.2,0.5,0.3. Determine the mean.

X ∈ {-1,0,1} with p=0.3,0.4,0.3. What is the variance?

X = {1,3} with p=0.6,0.4. Find the mean.

X in {2,5,9} with p=0.2,0.5,0.3. Compute the mean.

X ∈ {0,1,2,3} with p=0.1,0.2,0.4,0.3. Find the mean.

X ∈ {10,20} with p=0.5,0.5. What is the variance?

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