Hi, I have 2 questions A glass jar contains 2 blue 4 yellow 5 red and 1 green ma

Question

Hi, I have 2 questions A glass jar contains 2 blue 4 yellow 5 red and 1 green marble.Answer the following question a. One single marble is chosen at random from the jar. What isthe probability of choosing a red marble? b. What is the probability of choosing a green marble or ayellow marble? Show all working Question 2 If a coin is tossed three times. What is the probability oftossing not less than one tail? Hi, I have 2 questions A glass jar contains 2 blue 4 yellow 5 red and 1 green marble.Answer the following question a. One single marble is chosen at random from the jar. What isthe probability of choosing a red marble? b. What is the probability of choosing a green marble or ayellow marble? Show all working Question 2 If a coin is tossed three times. What is the probability oftossing not less than one tail?

Explanation / Answer

A glass jar contains 2 blue 4 yellow 5 red and 1 green marble.Answer the following question a. One single marble is chosen at random from the jar. What is theprobability of choosing a red marble?
Total marbles=2+4+5+1=12 Total red marbles =5 Probability (red)= total red marbles / total marbles =5/12
b. What is the probability of choosing a green marble or a yellowmarble?
Total marbles=2+4+5+1=12 Total green+yellow marbles =1+4=5 Probability (green or yellow)= total (green+yellow) marbles / totalmarbles =5/12
Question 2:-
total out comesare HHH, HHT, HTH, HTT, THH, THT, TTH, TTT every trail contain minimum one tail except (HHH) so outcomes=8 favourable outcomes =7
probability (not less than one tail) = 7/8 a. One single marble is chosen at random from the jar. What is theprobability of choosing a red marble?
Total marbles=2+4+5+1=12 Total red marbles =5 Probability (red)= total red marbles / total marbles =5/12
b. What is the probability of choosing a green marble or a yellowmarble?
Total marbles=2+4+5+1=12 Total green+yellow marbles =1+4=5 Probability (green or yellow)= total (green+yellow) marbles / totalmarbles =5/12
Question 2:-
total out comesare HHH, HHT, HTH, HTT, THH, THT, TTH, TTT every trail contain minimum one tail except (HHH) so outcomes=8 favourable outcomes =7
probability (not less than one tail) = 7/8 Total marbles=2+4+5+1=12 Total green+yellow marbles =1+4=5 Probability (green or yellow)= total (green+yellow) marbles / totalmarbles =5/12
Question 2:-
total out comesare HHH, HHT, HTH, HTT, THH, THT, TTH, TTT every trail contain minimum one tail except (HHH) so outcomes=8 favourable outcomes =7
probability (not less than one tail) = 7/8

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