Finding the missing value in a probability distribution

Find the missing value for P(X=5) in the probability ditribution:

Number of Toys | Probability

0| 0.03

1| 0.16

2| 0.30

3| 0.23

4| 0.17

5| ?

Mathematical Equivalence

ON

Calculate the probability P(X=4) in the given probability distribution:

Number of Books | Probability

0| 0.05

1| 0.20

2| 0.25

3| 0.30

4| ?

5| 0.10

• 0.10

• 0.15

• 0.20

• 0.25

Determine the missing probability P(X=3) in the following distribution:

Number of Apples | Probability

0| 0.10

1| 0.25

2| 0.30

3| ?

4| 0.20

5| 0.05

• 0.10

• 0.15

• 0.20

• 0.25

Answer explanation

To determine the missing probability P(X=3), sum all probabilities and subtract from 1: 1 - (0.10 + 0.25 + 0.30 + 0.20 + 0.05) = 0.20.

What is the value of P(X=2) in the given probability distribution?

Number of Cars | Probability

0| 0.12

1| 0.18

2| ?

3| 0.22

4| 0.28

5| 0.10

• 0.10

• 0.20

• 0.30

• 0.40

What is the missing probability P(X=1) in the following distribution?

Number of Pens | Probability

0| 0.05

1| ?

2| 0.25

3| 0.30

4| 0.20

5| 0.10

• 0.10

• 0.15

• 0.20

• 0.25

Find the missing value for P(X=4) in the probability distribution:

Number of Oranges | Probability

0| 0.08

1| 0.12

2| 0.20

3| 0.30

4| (a)  

5| 0.10

• 0.10
• 0.15
• 0.20
• 0.25

Determine the missing probability P(X=2) in the following distribution:

Number of Bananas | Probability

0| 0.15

1| 0.25

2| ?

3| 0.20

4| 0.30

5| 0.10

• 0.10

• 0.20

• 0.25

• 0.30