Free Printable Probability Trees

1.

Find P(MM)

a)

$\frac{42}{132}$

b)

$\frac{35}{132}$

c)

$\frac{20}{132}$

d)

$\frac{13}{23}$

2.

Find P(MD)

a)

$\frac{42}{132}$

b)

$\frac{35}{132}$

c)

$\frac{20}{132}$

d)

$\frac{13}{23}$

3.

Find P(DM)

a)

$\frac{42}{132}$

b)

$\frac{35}{132}$

c)

$\frac{20}{132}$

d)

$\frac{13}{23}$

4.

Find P(DD)

a)

$\frac{42}{132}$

b)

$\frac{35}{132}$

c)

$\frac{20}{132}$

d)

$\frac{13}{23}$

5.

Find the probability of picking two blue pens

a)

$\frac{56}{90}$

b)

$\frac{16}{90}$

c)

$\frac{64}{100}$

d)

$\frac{15}{90}$

6.

Find the probability of picking a red pen then a blue pen

a)

$\frac{56}{90}$

b)

$\frac{16}{90}$

c)

$\frac{16}{100}$

d)

$\frac{10}{90}$

7.

Find the probability of picking two red pens

a)

$\frac{56}{90}$

b)

$\frac{16}{90}$

c)

$\frac{4}{90}$

d)

$\frac{2}{90}$

8.

Find A, the probability that the first counter is Blue

a)

$\frac{4}{8}$

b)

$\frac{3}{7}$

c)

$\frac{5}{8}$

d)

$\frac{5}{7}$

9.

Find B, the probability that the first counter is Red

a)

$\frac{3}{8}$

b)

$\frac{3}{7}$

c)

$\frac{5}{8}$

d)

$\frac{5}{7}$

10.

Find the probability of selecting two lemon sweets

a)

$\frac{10}{18}$

b)

$\frac{25}{81}$

c)

$\frac{16}{81}$

d)

$\frac{20}{81}$

11.

Find the probability of selecting two strawberry sweets

a)

$\frac{10}{18}$

b)

$\frac{25}{81}$

c)

$\frac{16}{81}$

d)

$\frac{20}{81}$

12.

Find P(SL)

a)

$\frac{10}{18}$

b)

$\frac{25}{81}$

c)

$\frac{16}{81}$

d)

$\frac{20}{81}$

13.

Find P(LL)

a)

0.1

b)

0.01

c)

0.2

d)

0.02

14.

Find P(OL)

a)

0.9

b)

0.09

c)

1.0

d)

0.81

15.

Find P(OO)

a)

0.9

b)

0.81

c)

0.18

d)

0.081

Probability Trees

Total questions: 15

Worksheet time: 15mins

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