I have two bags of counters.

The first bag contains two red counters and one blue counter.

The second bag contains one red counter, one blue counter and two yellow counters.

I take a counter at random from both bags.

A). What is the probability that the two counters will be the same colour?

b). What is the probability that exactly one of the counters will be red?

Question

judahpepper2722 judahpepper2722

22-04-2020
Mathematics

contestada

I have two bags of counters.

The first bag contains two red counters and one blue counter.

The second bag contains one red counter, one blue counter and two yellow counters.

I take a counter at random from both bags.

A). What is the probability that the two counters will be the same colour?

b). What is the probability that exactly one of the counters will be red?

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ifesynwajesuschrist ifesynwajesuschrist · Answer 1 · 2020-04-25T06:44:54+02:00

ifesynwajesuschrist ifesynwajesuschrist

25-04-2020

Answer:

a. 4/21

b. 4/7

Step-by-step explanation:

Please kindly check the attached files for explanation.

Answer Link

MrTram MrTram · Answer 2 · 2020-05-22T14:33:46+02:00

MrTram MrTram

22-05-2020

Answer:

A) 3/12

B)7/12

Step-by-step explanation:

I used a tree diagram to go through this with my daughter, bear in mind the second question asks for the probability of exactly one red counter to be taken from the bag.

Answer Link