5,381 Answered Questions for the topic probability
Probability
07/21/20
A bag contains 8 white counters, 3 black counters, and 6 green counters. What is the probability of drawing
(a) a white counter or a green counter?(b) a black counter or a green counter?(c) not a green counter?
Probability
07/21/20
How many different ways are there to fill 4 positions?
A fifth grade class of 26 students wants to elect president, Vice President, treasurer & secretary.
Probability
07/21/20
How many different dinners are possible if you choose 1 item from each course?
The Health Shack is known for 3 course dinners consisting of appetizer, entree & vegetable. How many different dinners are possible if you choose 1 item from each course?
Probability
07/21/20
What’s the probability of drawing a blue, then black sock; what’s the probability of drawing a black sock then blue sock?
Probability of drawing socks from a drawer of 8 black socks, 6 blue & 4 white without replacement .
Probability
07/21/20
What’s the probability of landing on an even number & rolling an odd number on a die
Determine the probability of landing on an even number & rolling an odd number on die
Probability
07/21/20
What’s the probability of landing a 4 on a spinner & rolling a 6 on a die?
Determine the probability of landing a 4 on a spinner & rolling a 6 on a die
Probability
07/21/20
What’s the probability of it being a 6th grader?
A school has a raffle for 130 students in fifth & sixth grade. There are 62 fifth graders. What is the probability that the grand prize winner selected at random from 130 students will be a...
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Probability
07/21/20
What is the probability that the student will be female?
Jane Austen College has 1,020 males & 1,180 female students. What is the probability that the student selected at random will be female?
Probability
07/21/20
What is the probability that Dee wins?
Suppose Don Gregg & Dee Poset are the only 2 candidates for president. The probability that Don wins is 0.38. What is the probability that Dee wins?
Probability
07/21/20
How do I solve this problem?
An event is very unlikely to happen. It’s probability would be about ______
Probability Statistics
07/20/20
How many 4-character passwords can you make from the letters A, B, C, D, and E if you allow no repetition? In other words, you can have ABCD, but not AABC or ABCA.
Probability
07/20/20
Given the following information: P(A) = 0.58 P(B) = 0.34 P(A and B) = 0.12 P(B given A) = 0.21
What is the probability of A or B? Round your answer to the nearest hundredth as needed .P(A or B) =
Probability
07/20/20
A bag contains 6 white counters, 10 black counters, and 7 green counters. What is the probability of drawing
A. a white counter or a green counter?B. a black counter or a green counter?C. not a green counter?
Probability
07/20/20
A jar contains 5 pennies, 5 nickels and 8 dimes. A child selects 2 coins at random without replacement from the jar. Let X represent the amount in cents of the selected coins.
A. Find the probability X = 10.B. Find the probability X = 11C. Find the expected value of X.
Probability
07/20/20
A math class consists of 38 students, 24 female and 14 male. Three students are selected at random, one at a time, to participate in a probability experiment (selected in order without replacement).
A. What is the probability that a male is selected, then two females?B. What is the probability that a female is selected, then two males?C. What is the probability that two females are selected,...
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Probability
07/20/20
give each student a bag of chocolate m&ms. divide the students into groups of 5 or 6. calculate the relative frequency distribution for color of m&ms for each group.
(a) what is your estimated probability of randomly picking a yellow? a red? (b) redo the calculations for the whole classroom. did the estimates change? (c) do you believe there is an equal number...
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Probability Statistics
07/20/20
Testing a Claim about a Proportion
A genetic experiment involving peas yielded one sample of offspring consisting of 427427 green peas and 167167 yellow peas. Use a 0.05 significance level to test the claim that under the...
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Probability Finite Math
07/19/20
Finite Math: Probability
Wonder Widgets Inc. has 3 plants producing their De-lux Wonder Widget (DWW). Plant A produces 80% of all DWW, plant B 15%, and plant C the remaining 5%. 7% of Plant A’s production is defective, 6%...
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Probability Finite Math
07/19/20
Finite Math: Probability
Assume that 37% of the voting population in the US considers themselves as Democrats. Ten of these voters are selected at random(a) What is the probability that exactly 3 of the 10 selected...
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Probability Finite Math
07/19/20
Probability: Independent Events
Let A and B be independent events with P(A) = .4 and P(B) = .2. Find P(A ∪ B).
Probability Finite Math
07/19/20
Probability: Combinations
A club consists of 15 women and 10 men. They need to form a committee of 5 people. (a) How many different committees can be formed? (b) How many different committees consisting of 3 women and 2 men...
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07/18/20
Probability of a cubic having three real roots.
third degree polynomial is given as follows. f(x)=2x3-ax2+bx+4 a, b coefficients of the equation a,b interval between [-4,4]. what is the probability that all three roots of this equation are real...
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07/18/20
Probability & Statistics
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Probability
07/17/20
The probability that a baby boy born by a certain couple will grow up to be tall is 1/ 4. The probability of the couple to get a tall daughter is
Probability Statistics
07/17/20
HELP!!! I need help with statistics!
Help!!! With a SD of 16 a mean of 84 what would the probability be that someone scored an 80 on a test? Z score is -0.25. Also, with a Z score of 0.375, what would the probability be for someone to...
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