(d) Compute the standard deviation of the random variable x.The standard deviation is activities.(Round to one decimal place as needed.)(e) What is the probability that a randomly selected student has a parent involved in three activities?The probability is(Type an integer or a decimal. Do not round.)(f) What is the probability that a randomly selected student has a parent involved in three or four activities?The nenhahili inWent OpinionPWPCMIOT C...!::átv st9KIn the following probability distribution, the random variable x represents the number of activities a parent of a 6th- to 8th-grade student is involved in. Complete parts (a) through (f) below.01+0.2320.286P(x)20.29730.06140.124C(a) Verify that this is a discrete probability distribution.This is a discrete probability distribution because the sum of the probabilities is and each probability is(b) Graph the discrete probability distribution Choose the correct graph bolow▼

Given that X 0 1 2 3 4 P(x) 0.232 0.286 0.297 0.061 0.124

Answered: P(x) 0.232 0.286 0.297 0.061 0.124 (a)…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Fault Since 1857, Parkfield, California, has had a major earthquake on the average of once every 22 years. Explain why a Poisson probability distribution would be a good choice for r = number of earthquakes in a given time interval. Compute the probability of at least one major earthquake in the next 22 years. Round λ to the nearest hundredth, and use a calculator. Compute the probability that there will be no major earthquake in the next 22 years. Round λ to the nearest hundredth, and use a calculator. Compute the probability of at least one major earthquake in the next 50 years. Round λ to the nearest hundredth, and use a calculator. Compute the probability of no major earthquake in the next 50 years. Round λ to the nearest hundredth, and use a calculator.
Assume that when human resource managers are randomly selected, 56% say job applicants should follow up within two weeks. If 7 human resource managers are randomly selected, find the probability that exactly 3 of them say job applicants should follow up within two weeks. The probability is ___________.
7-2-3'2
The graph of a probability distribution is shown below. The graph is made up of two line segments and a curved path. 0.25 10 I1 For each part below, suppose a real number is picked according to the above probability distribution. Do not round any of your answers. (a) Find the probability that the number picked is between 6 and 9. (b) Find the probability that the number picked is 5. (c) Find the probability that the number picked is between 4.4 and 5.2.
please you must answer part (d) (e) (f) thank
The lifetime of a housefly ranges from 18 hours to 30 hours, determine the probability that a fly selected at random will live AT LEAST 28 hours.
Calculate the mean for the discrete probability distribution
Roll two fair dice. Use the Poisson approximation to find the probability that you will rollat least one double (meaning both dice land on the same value) in 24 trials. How does this compare tothe exact value? Answer as if explaining to someone.
The graph of the discrete probability to the right represents the number of live births by a mother 41 to 45 years old who had a live birth in 2015. Complete parts (a) through (d) below. 0.165 Uhur 0.114 0.107 3 4 5 Number of Live Births (Round to one decimal place as needed) 0.30- 0.25- 0.20- 0.15- 0.10- 0.05- 0.00T 0 0.234 1 0.281 2 0.021 0.025 6 0.053 7 8 (a) What is the probability that a randomly selected 41- to 45-year-old mother who had a live birth in 2015 has had her fourth live birth in that year? (Type an integer or a decimal.) (b) What is the probability that a randomly selected 41- to 45-year-old mother who had a live birth in 2015 has had her fourth or fifth live birth in that year? (Type an integer or a decimal.) (c) What is the probability that a randomly selected 41- to 45-year-old mother who had a live birth in 2015 has had her sixth or more live birth in that year? (Type an integer or a decimal.) (d) If a 41- to 45-year-old mother who had a live birth in 2015 is…
The time to wait for a drive through order at Mcdonald's is uniformly distributed between 5 and 12 minutes. Write the distribution of the random variable X using the correct noration. Draw the probability distribution that represents this situation. What is the probability that a customer waits more than 10 mins for their order- write the probability statement mathmatically using correct notation with graph, anser in full sentesnce. Find the probability a customer waits between 6 and 8 minutes, given that the customer waited less than 10 mins. What is the 75th percential of the original distribution-include graph.
The graph of the discrete probability to the right represents the number of live births by a mother 42 to 46 years old who had a live birth in 2015. Complete parts (a) through (d) below. (...) A 0.30- 0.25- 0.20- 0.15- 0.10- 0.05- 0.00- 0.232 1 0.270 2 0.472 0.114 0.098 0.021 0.039 0.054 ? 3 4 5 Number of Live Births 6 8 (a) What is the probability that a randomly selected 42- to 46-year-old mother who had a live birth in 2015 has had her fourth live birth in that year? (Type an integer or a decimal.) (b) What is the probability that a randomly selected 42- to 46-year-old mother who had a live birth in 2015 has had her fourth or fifth live birth in that year? (Type an integer or a decimal.) (c) What is the probability that a randomly selected 42- to 46-year-old mother who had a live birth in 2015 has had her sixth or more live birth in that year? (Type an integer or a decimal.) (d) If a 42- to 46-year-old mother who had a live birth in 2015 is randomly selected, how many live births…
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P(x) 0.232 0.286 0.297 0.061 0.124 (a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because the sum of the probabilities is (b) Graph the discrete probabilib distribution Choose the orrect graph I and each probability is