A box of light bulbs contains exactly 3 light bulbs that are defective. What is the probability that a sample of light bulbs picked at random from this box will contain at least 1 defective light bulb? (1) The light bulbs Leer más…
Categoría: Probability
A box of light bulbs contains exactly 3 light bulbs that are defective. What is the probability that a sample of light bulbs picked at random from this box will contain at least 1 defective light bulb?
In the town of Z, the town lion roars on some days and not on others. If a day is chosen at random from last March, what is the probability that on that day, either the town lion roared or it rained?
In the town of Z, the town lion roars on some days and not on others. If a day is chosen at random from last March, what is the probability that on that day, either the town lion roared or Leer más…
A box contains only red chips, white chips, and blue chips. If a chip is randomly selected from the box, what is the probability that the chip will be either white or blue?
A box contains only red chips, white chips, and blue chips. If a chip is randomly selected from the box, what is the probability that the chip will be either white or blue? (1) The probability that the chip will Leer más…
A fish tank contains a number of fish, including 5 Fantails. If two fish are selected from the tank at random, what is the probability that both will be Fantails?
A fish tank contains a number of fish, including 5 Fantails. If two fish are selected from the tank at random, what is the probability that both will be Fantails? (1) The probability that the first fish chosen will be Leer más…
A lottery is played by selecting X distinct single digit numbers from 0 to 9 at once such that order does not matter. What is the probability that a player will win playing the lottery?
A lottery is played by selecting X distinct single digit numbers from 0 to 9 at once such that order does not matter. What is the probability that a player will win playing the lottery? (1) Players must match at Leer más…
In a certain game only one player can win and only one player always eventually wins. James, Austin, and Katelyn play this game together 3 times in a row. What is the probability that Katelyn wins at least one of the 3 games.?
In a certain game only one player can win and only one player always eventually wins. James, Austin, and Katelyn play this game together 3 times in a row. What is the probability that Katelyn wins at least one of Leer más…
A pack of 12 cards contains either red or black cards. What is the probability that a card chosen at random will be a red card?
A pack of 12 cards contains either red or black cards. What is the probability that a card chosen at random will be a red card? (1) The pack has 6 more red cards than black cards (2) The pack Leer más…
A total of 20 interns and 15 full-time employees work in the 35 offices of a company, with one person working in each office. One office is selected at random to get an upgraded desk. What is the probability that the office selected will be that of a female intern?
A total of 20 interns and 15 full-time employees work in the 35 offices of a company, with one person working in each office. One office is selected at random to get an upgraded desk. What is the probability that Leer más…
A group of N students will be randomly seated in a row of N chairs. What is the probability that Beth, one of the students, will be at the extreme right-hand end of the row?
A group of N students will be randomly seated in a row of N chairs. What is the probability that Beth, one of the students, will be at the extreme right-hand end of the row? (1) N is an odd Leer más…
If there are 15 children in a gym class and 2 children are to be randomly chosen to perform a demonstration, how many of the children are left-handed?
If there are 15 children in a gym class and 2 children are to be randomly chosen to perform a demonstration, how many of the children are left-handed? 1) The probability of no left-handed children being chosen is 3/7 2) Leer más…