5,385 Answered Questions for the topic probability

11/09/20

DATA ANALYSIS ENGINEERING
A male fruit fly is equally likely to carry alleles a or b on the X chromosome. Allele a is lethalfor females, so if the male fruit fly carries a, all of its offspring will be male. If the male... more
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Probability

11/09/20

About probability
Consider a Bernoulli process with probability of success 0.7. What is the probability that there are 4 l’s and 3 O's in trials 36-42?
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Probability

11/08/20

Rules of Probability
Let E, F and G be three events in S with P(E) = 0.61, P(F) = 0.47, P(G) = 0.39, P(E ∩ F) = 0.3, P(E ∩ G) = 0.2, P(F ∩ G) = 0.18, and P(E ∩ F ∩ G) = 0.08. Find P(EC ∪ FC ∪ GC).P(EC ∪ FC ∪ GC) Can't... more
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Probability

11/08/20

Suppose that events F and S are conditional independent events given D and ~D respectively with p(F|D)=p(S|D)=0.9, p(~F|~D)=p(~S|~D)=0.9, and p(D)=0.2. Find p(D|F∩S)
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Probability

11/08/20

Conditional Probability
(a)    P(EC | F) (b)    P(FC | E)Any help is appreciated thanks. 
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Probability

11/08/20

Conditional Probability
Let P(E) = 0.25, P(F) = 0.45, and P(E ∩ F) = 0.15. Draw a Venn diagram and find the conditional probabilities.(a) P(F | E ∩ F)(b) P(EC | E )Any help is appreciated thanks.
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Probability

11/08/20

Rules of Probability
Let E, F and G be three events in S with P(E) = 0.61, P(F) = 0.47, P(G) = 0.39, P(E ∩ F) = 0.3, P(E ∩ G) = 0.2, P(F ∩ G) = 0.18, and P(E ∩ F ∩ G) = 0.08. Find P(EC ∪ FC ∪ GC).P(EC ∪ FC ∪ GC) Can't... more
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Probability

11/08/20

Rules of Probability
Let S = {a, b, c, d, e, f} with P(b) = 0.11, P(c) = 0.18, P(d) = 0.23, P(e) = 0.19, and P(f) = 0.16. Let E = {c, d, e} and F = {a, b, d, e}. Find P(a), P(E), and P(F).P(a)P(E)P(F)I found P(E).... more
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Probability

11/08/20

Probability question
A and B are two weak students of statistics and their chances of solving a problem in statistics correctly are 1/6 and 1/8 respectively. If the probability of their making a common error is 1/525... more
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Probability

11/08/20

Probability question
Rahul speaks truth 4 out of 5 times. A die is tossed. He reports that there is a six. What is the chance that actually there was six? ... more
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Probability

11/08/20

Basics of Probability
A fair 4-sided die is tossed. What is the probability that the numbers 4 or 3 are tossed?Can't seem to figure it out. Any help is appreciated thanks.
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Probability Statistics

11/08/20

Probability Question
4 balls are picked at random from a box with 20 red balls, 25 black balls and 5 white balls. Let X be the number of white balls in the sample. Compute 𝑃(𝑋2 + 12 = 7𝑋).
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Probability Statistics

11/08/20

Expected cost and Probability

A store owner has overstocked a certain item and decides to use the following promotion to decrease the supply. The item has a marked price of $100. For each customer purchasing the item during a... more
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Probability Statistics

11/08/20

Statistics, Probability

In a certain country, 40% of the population has covid-19. If one person at a time is selected at random, what is the probability that The 1st person found with covid-19 is the 5th person... more
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Probability Statistics

11/08/20

Probability Query
A box contains 3 red chips and 7 white chips. A chip is selected at random, its color noted and is set aside. Then a second chip is selected and its color noted. Let W be the number of white chips... more
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Probability

11/06/20

i need help in this question

 When rolling two 1-6 number cubes, the table below shows the possible products for the two numbers rolled.the pssible outcomes is 36If you rolled two number cubes, what is the probability you will... more
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Probability Math Statistics

11/06/20

simulate a fair coin in at most N flips. For how many values of p is this possible?
Mathematician John von Neumann is credited with figuring out how to take a biased coin (whose probability of coming up heads is p, not necessarily equal to 0.5) and “simulate” a fair coin. Simply... more
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Probability

11/04/20

About probability
There are 28 dominoes of the 28 tiles 25% are tiles with double numbers from double blank to double six. This gives you a 14.3% chance of drawing a double number. If you have 4 players each drawing... more
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Probability

11/03/20

A survey was conducted to determine the tracks chosen by applied mathematics students.
Results showed that 40% chose Actuarial Science, 50% chose Financial Mathematics, and 10% chose both. What percentage of students chose neither of the two tracks?
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Probability

11/02/20

given a standard normal disturbution
Given a standard normal distribution, find the probablitiy of:a. less than -0.59b. between -0.73 and 1.45
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11/01/20

How to assign seats to the passengers maintaining social distancing?
Imagine there are 30 people in line to board a train that seats 100. However, per currentregulations there must be at least two empty seats between each pair of passengers. Theregulations are not... more
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Probability Math Statistics

10/31/20

Need help finding the probability
"Suppose that a category of world class runners are known to run a marathon (26 miles) in an average of 143 minutes with a standard deviation of 14 minutes. Consider 49 of the races" Let X = the... more
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Probability

10/31/20

binomial distribution
I have a bag with 100 balls, 30 green balls and 70 red ones. If I take a ball out of the bag 20 times (with replacement), what is the probability of getting 18 green balls given by binomial... more
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Probability

10/31/20

What is the probability of drawing a heart from a deck of cards on the first draw and not drawing a heart on the second draw without replacement?
What is the probability of drawing a heart from a deck of cards on the first draw and not drawing a heart on the second draw without replacement?
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Probability

10/31/20

It’s about statistics

ssume that when adults with smartphones are randomly​ selected, 62​% use them in meetings or classes. If 15 adult smartphone users are randomly​ selected, find the probability that exactly 10 of... more
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