Probability Examples and Explanations
Recent questions in Probability
High school probabilityAnswered question
defazajx 2021-09-16My keys got lost either at home or at the office, but I know that they are easy likely to be at office than at home.
If they are at office, I will find them the next day with probability 40%. If they are at home, I will find them the next day with probability 60%.
What is the probability that the next day I have found a keys?
If they are at office, I will find them the next day with probability 40%. If they are at home, I will find them the next day with probability 60%.
What is the probability that the next day I have found a keys?
High school probabilityAnswered question
Zoe Oneal 2021-09-16The probability is given as a binomial. Put the likelihood in writing. The binomial probability is then transformed into a probability with a normal distribution using a continuity adjustment.
Write the probability in words.
The probability of getting ? 124 successes.
The probability is given as a binomial. Put the likelihood in writing. The binomial probability is then transformed into a probability with a normal distribution using a continuity adjustment.
Write the probability in words.
The probability of getting ? 124 successes.
High school probabilityAnswered question
Aneeka Hunt 2021-09-16Two firms V and W consider bidding on a road-building job, which may or
may not be awarded depending on the amounts of the bids. Firm V submits a
bid and the probability is 0.8 that it will get the job provided firm W does not
bid. The probability is 0.7 that W will be bid, and if it does, the probability that
V will get the job is only 0.4
What is the probability that V will get the job?
High school probabilityAnswered question
Ramsey 2021-09-16Max is studying for a probability exam. He attempts 703 problems in total while practicing. He gets 560 of those problems correct. 216 of the total problems involve conditional probability. Of those 216 conditional probability problems, he gets 134 correct. A random question that Max got wrong is selected. What is the probability that it involved conditional probability?
High school probabilityAnswered question
boitshupoO 2021-09-16Bertha historically makes 70% of her free throws in basketball. She takes 6 shots. Your final answers should be correct to 3 places after the decimal point.
Find the probability that she makes at most 5 free throws.
Find the probability that she makes at most 5 free throws.
High school probabilityAnswered question
kuCAu 2021-09-16The probability that a person in the US has a type A positive blood is 30%. Three unrelated people in the US are selected at random.
Find the probability that all three have A positive blood.
Find the probability that all three have A positive blood.
High school probabilityAnswered question
Amari Flowers 2021-09-16Two six-sided dice are rolled.
Find the probability of not rolling double sixes in 24 attempts.
Find the probability of not rolling double sixes in 24 attempts.
High school probabilityAnswered question
Emeli Hagan 2021-09-16The probability that a regularly scheduled flight departs in time is 0.83, the probability that it arrives in time is 0.90 and the probability that it departs and arrives in time is 0.78. Find probability that
High school probabilityAnswered question
mattgondek4 2021-09-15In a factory,that produces glass bottles, 5 number of bottles are defected in 1000 bottles produced.
In a random sample of 100 bottles, calculate the probability that more than 4 are defected?
In a random sample of 100 bottles, calculate the probability that more than 4 are defected?
High school probabilityAnswered question
arenceabigns 2021-09-15Based on a poll, 40% of adults believe in reincarnation. Assume that 6 adults are randomly selected, and find the indicated probability.
What is the probability that at least 5 of the selected adults believe in reincarnation?
The probability that at least 5 of the selected adults believe in reincarnation is |_|
(Round to three decimal places as needed.)
High school probabilityAnswered question
CoormaBak9 2021-09-15Suppose that on each play of the game a gambler either wins $1 with probability
p = 3 or loses $1 with probability 1 — p = 4. The gambler continues betting until she or he
is either up $6 or down $3.
What is the probability that the gambler quits a winner?
High school probabilityAnswered question
ddaeeric 2021-09-14John charges his cell phone only when it is fully drained. The length of time, in hours, between charges of his cell phone is normally distributed with mean 31 and variance 64.
Probability(Cell phone lasts at least 7.72 hours after the last recharge)
Probability(Cell phone lasts at least 7.72 hours after the last recharge)
High school probabilityAnswered question
Braxton Pugh 2021-09-14The Metropolis police station calls Superman an average of 3 times per hour to ask for his help. The probability that the station calls Superman in a time interval is dependent only on the length of the time interval and, furthermore, is independent of whether or not the department called Superman on any previous time interval. Superman goes on a date with Lois Lane and picks her up from her place at 7:00pm.
What is the probability that the date is interrupted 5 times during the first hour and
Lois decides to go back to the office and finish writing her article?
What is the probability that the date is interrupted 5 times during the first hour and Lois decides to go back to the office and finish writing her article?
High school probabilityAnswered question
Annette Arroyo 2021-09-14John charges his cell phone only when it is fully drained. The length of time, in hours, between charges of his cell phone is normally distributed with mean 31 and variance 64.
Suppose that the cell phone lasted 48.84 hours since the most recent charge. z-score for this value
Suppose that the cell phone lasted 48.84 hours since the most recent charge. z-score for this value
High school probabilityAnswered question
nitraiddQ 2021-09-14The porosity of Wara formation is normally distributed with a mean of 18% and a
standard deviation of 4%.
What is the probability that a core sample will have a porosity between 26 and
28%?
What is the probability that a core sample will have a porosity between 26 and 28%?
High school probabilityAnswered question
babeeb0oL 2021-09-14A new car that is a gas- and electric-powered hybrid has recently hit the market. The distance travelled on 1 gallon of fuel is normally distributed with a mean of 45 miles and a standard deviation of 7 miles. Find the probability of the car travels less than 42 miles per gallon
High school probabilityAnswered question
abondantQ 2021-09-14The National Vaccine Information Center estimates that 90% of Americans have
had chickenpox by the time they reach adulthood.
Suppose we take a random sample of 100 American adults. Is the use of the binomial distribution
appropriate for calculating the probability that exactly 97 out of 100 randomly sampled American
adults had chickenpox during childhood? Explain.
Suppose we take a random sample of 100 American adults. Is the use of the binomial distribution appropriate for calculating the probability that exactly 97 out of 100 randomly sampled American adults had chickenpox during childhood? Explain.
High school probabilityAnswered question
Maiclubk 2021-09-14A fair quarter is flipped three times.
For each of the following probabilities, use the formula for the binomial distribution and a calculator to compute the requested probability.
Next, look up the probability in the binomial probability distribution table. (Enter your answers to three decimal places.)
Find the probability of getting exactly three heads.
For each of the following probabilities, use the formula for the binomial distribution and a calculator to compute the requested probability.
Next, look up the probability in the binomial probability distribution table. (Enter your answers to three decimal places.)
Find the probability of getting exactly three heads.
High school probabilityAnswered question
Sinead Mcgee 2021-09-14The weight of trout in a fish farm follows the distribution N (200, 502). A trout is randomly selected.
What is the probability that its weight is greater than 230g?
What is the probability that its weight is greater than 230g?
High school probabilityAnswered question
a2linetagadaW 2021-09-14An urn contains pink and green flowers.
Two flowers are chosen without replacement.
The probability of selecting a pink flower and then a green flower is 0.73, and the probability of
selecting a pink flower on the first draw is 0.24.
What is the probability of selecting a green flower on the second draw, given that the first flower drawn was pink?
Two flowers are chosen without replacement.
The probability of selecting a pink flower and then a green flower is 0.73, and the probability of selecting a pink flower on the first draw is 0.24.
What is the probability of selecting a green flower on the second draw, given that the first flower drawn was pink?
If you are looking for high school probability equations, you are in the right place because we can provide you with the list of answers and questions that will help you as you deal with your equations or just need practical examples. If you need to deal with something specific, browse through the list of examples and see how each answer has been handled.
The high school probability differs from those engineering tasks, yet it is not always much simpler if you do not know the basics. Therefore, take your time to see our examples and learn.
