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If a box contains 4 red marbles seven white and 5 blue and two marbles are drawn one at a time with replacement What is the probability that both marbles are white?
Since the box contains 16 marbles, seven of them white, then the probability of drawing one white marble is 7/16. If you replace the marble and draw again, the probability of drawing another white marble is still 7/16. The net probability of drawing two white marbles, while replacing the first, is 49/256.
When a bag contains 4 white chips and 6 black chips. What is the probability of randomly choosing a white chip not replacing it and then randomly choosing another white chip?
To find the probability of choosing two white chips in succession without replacement, we first calculate the probability of selecting a white chip on the first draw. There are 4 white chips out of a total of 10 chips, so the probability of the first draw is 4/10. After removing one white chip, there are 3 white chips left out of a total of 9 chips, making the probability of the second draw 3/9. Therefore, the overall probability of drawing two white chips in succession is (4/10) * (3/9) = 12/90, which simplifies to 2/15.
Given eight students four of which are females if two students are selected at random without replacement what is the probability that both students are female?
The probability of selecting 1 female at random is 4/8 There are now 7 students, 3 of which are female so the probability of selecting another female is 3/7 The probability two randomly selected students are female is (4/8)x(3/7)= 3/14
When an event's probability depends on the likelihood of another event. the probability is what?
It is dependent.
There were 6 purple socks and 4 orange socks in a drawer Zucky picked one sock without looking and then another without looking replacing the first what is the probability that he picked 2 purple?
Probability of picking purple sock first time is 6/10 or 3/5, second time, probability is 5/9. Thus 3/5 * 5/9 = 15/45 which cancels to 1/3
A bag contains 4red marbles 2 white marbles a marble is selected kept out the bag and then another marble is selected what is the probability of selecting a red marble and then white marble?
2/6
If a box contains 4 red marbles seven white and 5 blue and two marbles are drawn one at a time with replacement What is the probability that both marbles are white?
Since the box contains 16 marbles, seven of them white, then the probability of drawing one white marble is 7/16. If you replace the marble and draw again, the probability of drawing another white marble is still 7/16. The net probability of drawing two white marbles, while replacing the first, is 49/256.
When a bag contains 4 white chips and 6 black chips. What is the probability of randomly choosing a white chip not replacing it and then randomly choosing another white chip?
To find the probability of choosing two white chips in succession without replacement, we first calculate the probability of selecting a white chip on the first draw. There are 4 white chips out of a total of 10 chips, so the probability of the first draw is 4/10. After removing one white chip, there are 3 white chips left out of a total of 9 chips, making the probability of the second draw 3/9. Therefore, the overall probability of drawing two white chips in succession is (4/10) * (3/9) = 12/90, which simplifies to 2/15.
Given eight students four of which are females if two students are selected at random without replacement what is the probability that both students are female?
The probability of selecting 1 female at random is 4/8 There are now 7 students, 3 of which are female so the probability of selecting another female is 3/7 The probability two randomly selected students are female is (4/8)x(3/7)= 3/14
What is the probability of drawing a red checker from a bag of 9 black checkers and 6 red checker replacing it and drawing another red checker?
4 out of 25
A bag contains 8 marbles 4 are blue 3 are green and one is orange you draw out one marble and then another without replacing the first marble Find the probability of drawing 2 blue marbles?
Probability of drawing a blue marble first is 4 in 8 (or 50%) Probability of drawing a blue marble second is 3 in 7 (or 42.85714%) Probablility of drawing blue then blue is the two above multiplied 0.5 * 0.4285714 Which is 0.212142407 or 21% or One in Five.
There are 10 rolls of film in a box and 3 are defective Two rolls are selected without replacement What is the probability of selecting a defective roll followed by another defective roll?
1/15 or about 0.07
If you draw a club at random from a deck of cards and then draw again after replacing the first card the probability of drawing another club is smaller the second time compared to the first time?
No, it is the same.
When an event's probability depends on the likelihood of another event. the probability is what?
It is dependent.
What is another name for Experimental Probability?
Another name for experimental probability is empirical probability. This is the ratio of the number of outcomes in which a specified event occurs to the total number of trials.
What is chance in maths?
Another word for probability.
What is the probability that you select an ace given that you have already selected an ace?
If you have already selected an ace from a standard deck of 52 cards, there are now 51 cards left in the deck, including 3 remaining aces. The probability of selecting another ace from the remaining cards is therefore 3 out of 51, or ( \frac{3}{51} ), which simplifies to ( \frac{1}{17} ).
