Assuming that the probability that a light bulb has a useful life of at least 700 hours is 0.7, find the probability that at least 4 out of 20 bulbs will not have a useful life of at least 700 hours. [Refer to appropriate distribution table if needed.] O A. 0.2858 OB. 0.5194 OC. 0.8329 OD. 0.8929

Assuming that the probability that a light bulb has a useful life of at least 700 hours is 0.7, find the probability that at least 4 out of 20 bulbs will not have a useful life of at least 700 hours. [Refer to appropriate distribution table if needed.] O A. 0.2858 OB. 0.5194 OC. 0.8329 OD. 0.8929

Name: Assuming that the probability that a light bulb has a useful life of
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: Assuming that the probability that a light bulb has a useful life of at least 700 hours is 0.7, find the probability that at least 4 out of 20 bulbs will not have a useful life of at least 700 hours. [Refer to appropriate distribution table if neede

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

TF.13 The English proficiency test scores of the students from a large high school have mean μ = 76 points and standard deviation σ = 8.8 points. Let x̄ be the average salary of a random sample of 40 students. a) Find the probability that x̄ is between 72 and 80, inclusive. b) Find the probability that x̄ is at least 77.
Question 4 P(x) 0.25 0.1 2. 3 0.15 0.5 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places > Next Question W re to search
Find the indicated probability by using the special addition rule. A relative frequency distribution is given below for the size of families in one U.S. city. Size 2 3 4 5 6 7+ Relative frequency 0.409 0.217 0.205 0.118 0.033 0.018 A family is selected at random. Find the probability that the size of the family is less than 5. Round approximations to three decimal places..
4 a. )Draw the graphs. Round your final answers up to 6 decimal places, if applicable. Give the correct units.
You may need to use the appropriate appendix table or technology to answer this question. For a t distribution with 18 degrees of freedom, find the area, or probability, in each region. (Round your answers to three decimal places.) a. between −1.330 and 1.330 b. between −2.101 and 2.101
Question 2: If X is normally distributed with mean 32 and standard deviation 4. Find the probability that xis at least 36?
QUESTION 1 Find the mean, p , for the binomial distribution which has the stated values of n and p. Round your answer to the nearest tenth if necessary. n = 2396; p = 0.63 O µ= 1513.2 O µ = 1501.0 O µ = 1504.2 µ = 1509.5
Question 2 For a single count measurement that follows Gaussian distribution, the interval that is expected to contain the true mean value with a 90% probability is 1,463 ± y. What is y? Give your answer to 1 decimal place. to flto) 0.674 ơ 0.674 0.500 1.00 0.683 1.64 o 1.64 0.900 1.96 o 1.96 0.950 2.58 o 2.58 0.990 3.00 o 3.00 0.997
A certain city divides naturally into ten district neighborhoods.How might a real estate appraiser select a sampleof single-family homes that could be used as a basis fordeveloping an equation to predict appraised value fromcharacteristics such as age, size, number of bathrooms,distance to the nearest school, and so on? Is the studyenumerative or analytic?
To the nearest tenth of a percent, the highest consumer price index was occurred in the year
Questions c, d and e.
Question 4 According to the WHO, the birth weight for male babies born full-term is normally distributed with a mean 90.1 oz and a standard deviation of 17.3 oz. Let X be the birth weight of a randomly selected male baby born full-term. 1. Describe the probability distribution of X and state its parameters and σ: X Select an answer Select an answer XTBZEN a. less than 128.5 oz. b. between 61.9 and 82.1 oz. c. more than 131.7 oz. X² (μ = 2. Find the probability that the birth weight of a randomly selected male baby born full-term is 3. Find the 65-th percentile for the birth weight. 0 = (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) oz (Round the answer to 1 decimal place)