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High school probability

Recent questions in High school probability

Brennan Flores 2021-09-23

a) Explain the reason to use binomial formula instead of using normal approximation to obtain the required probability.
b) Explain the reason for the authors of the study can propose that someone who scores 42 or less on the MENT exam is faking the test.

slaggingV 2021-09-23

How can I get the probability of a binomial distribution if the values are between 6 and 9, and the number of trials is 19?

Ava-May Nelson 2021-09-23

A binomial probability distribution has $p = 0.20$ and $n = 100$
a. what are the mean and standard deviation?
b. Is this situation one in which binomial probabilities can be approximated by the normal probability distribution? Explain.
c. what is the probability of exactly 24 successes?
d. what is the probability of 18 to 22 successes?
e. what is the probability of 15 or fewer successes?

kuCAu 2021-09-23

Assume that a procedure yields a binomial distribution with a trial repeated $n = 5 n = 5$ times. Use some form of technology to find the probability distribution given the probability $p = 0.6 p = 0.6$ of success on a single trial.
(Report answers accurate to 2 decimal places.)
$Misplaced &$

Wierzycaz 2021-09-23

Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes (based on data from an LG Smartphone survey).
If 20 adult smartphone users are randomly selected, find the probability that exactly 15 of them use their smartphones in meetings or classes.

mattgondek4 2021-09-23

A dart board contains 20 equally-sized sectors numbered 1 to 20. A dart is randomly tossed at the board 10 times.
a) What is the probability that the dart lands in the sector labeled 20 a total of 5 times?
b) What is the expected number of times the dart would land in a given sector?

sibuzwaW 2021-09-23

The p-value.
Given: The size of the sample (n) is 15.

Khadija Wells 2021-09-23

In a large population, about 65% of families take a vacation during the summer. A researcher takes a random sample of 16 families and surveys whether they take a summer vacation.
Use the binomial distribution to compute the probability that exactly 8 of the families take a summer vacation.
Identify the following information required to find the probability of families that take a vacation during the summer.
Provide your answer below:
$n =$ trials
$x =$ successes
$p =$ probability of summer vacation

Sinead Mcgee 2021-09-23

Calculate the probability of exactly 3 successes in 4 tries.
$p = 0.2$

illusiia 2021-09-23

A new experimental process for manufacturing a circuit for quantum computers is successful 80% of the time. Researchers want to calculate the probability that more than 15 of the next 20 attempts to make the circuit will be successful. Can they use the normal approximation to the binomial? Why or why not?

Maiclubk 2021-09-23

Let x be a discrete random variable that possesses a binomial distribution. Using the binomial formula, find the following probability.
$P (x = 3) f or n = 4 and p = 0.3$
Round your answer to four decimal places.
$P (x = 3) = ?$

Josalynn 2021-09-23

Find the probability of X successes in table B of appendix A.
$n = 12, p = 0.90, x = 2$
I believe they are using the the binomial probability formula and im not sure how to start if you can give a step by step anwser explanation that would be helpful.

BenoguigoliB 2021-09-23

An oil company conducts a geologival survey that indicates an exploratory oil well should have a 23% change of striking oil.
A. What is the probability that the 2nd strike will occur on the 5th attempt?
B. What is the probability that the 7th strike will occur on the 12th attempt?
C. What is the probability that the 11th strike will occur between the 15th and 18th attempt?

vazelinahS 2021-09-23

In Exercises, X denotes a binomial random variable with parameters n and p. For each exercise, indicate which area under the appropriate normal curve would be determined to approximate the specified binomial probability.
$P (4 < X < 8)$

coexpennan 2021-09-22

A heavy equipment can break down for many possible reasons, two of which are human error and engine
failure, For a given construction project, it is known that:
The probability of engine failure is 0.008.
© The probability of human error is 0.001. e Given engine failure, the probability of heavy equipment break down is 0.98. ¢ Given human error, the probability of heavy equipment break down is 0.45. e Given any other reason of failure, the probability of heavy equipment break down is zero. Determine the probability that a heavy equipment breaks down.

Zoe Oneal 2021-09-22

The probability that a regularly scheduled flight departs on time is P(D) = 0.83, the probability that it arrives on time is P(A) = 0.82. and the probability that it departs and arrives on time is P(D N A) = 0.78. Find the probability that a plane arrives on time given that it departed on time

Zoe Oneal 2021-09-22

a simple binary communication channel carries messages by using only two signals, say 0 and 1. We assume that, for a given binary channel, 40% of the time a | is transmitted. the probability that a transmitted 0 is correctly received is 0.90 and the probability that a transmitted | is correctly received is 0.95. given a 0 is received, the probability that 0 was transmitted.

ediculeN 2021-09-22

What is the mean of the probability distribution? A. 2.10 B. 1.20 C. 2.01 D. 1.02

Lennie Carroll 2021-09-22

The number of qualified voters living in household on a randomly selected subdivision block is described by the following probability distribution.

Joni Kenny 2021-09-22

Classify the following probability estimates as classical, relative frequency, or subjective, give your justification for the same: (a) The probability the Cubs will win the World Series this year is 0.175. (b) The probability tuition will increase next year is 0.95. (c) The probability that you will win the lottery is 0.00062.

High school probability is one of those interesting tasks that young students receive as part of their statistics and probability assignments. You should also find the answers to probability exercises for high school along with the high school probability questions that will help you come up with the most efficient solutions. If you would like to focus on statistical challenges, you should also use high school probability problems as well as it is based on our examples. Be it related to equations or graphs that will talk about probability, follow our examples and things will become clearer!

High school probability

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