A random variable follows a binomial distribution with the probability of success for one trial at 0.745 and 18 randomly selected trials. *Round to the fourth.*a) Find the mean of the distribution. [ ]b) Find the standard deviation of the distribution. [ ]c) Find the probability of exactly 13 successes. [ ]

The sample size is 18 and probability of success is 0.745.

Answered: A random variable follows a binomial…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

The weights of steers in a herd are distributed normally. The variance is 90,000 and the mean steer weight is 1200 lbs. Find the probability that the weight of a randomly selected steer is between 1379 and 1590 lbs. Round your answer to four decimal places.
Find the mean, variance, and standard deviation of the binomial distribution for the random variable. Interpret the results.
The table below shows the probability distribution of job satisfaction scores (1 - 4) for a group of senior executives. A score of 1 indicates a strong dissatisfaction with their jobs; a score of 4 indicates a strong satisfaction with their jobs.Note that you must complete both parts a. and b. to receive any marks for the remaining parts of this question.a. Complete the missing value in the following table. Round to at least FIVE decimals if necessary. Job Satisfaction Score Probability of Score 1 0.2 2 3 0.27 4 0.26 b. What is the expected job satisfaction score for this group of senior executives?Answer: Do NOT round your answer!c. What is the standard deviation of the job satisfaction score for this group of senior executives?Answer: Round to at least FIVE decimals if necessaryd. Suppose a senior executive expects to earn an additional 4350 dollars per year for each job satisfaction score point. The executive also will receive a fixed 250 dollar yearly raise and…
Construct a probability distribution for the sum shown on the faces when two dice, each with 8 faces, are rolled. 1. Find the mean. Round your answer to one decimal place as needed. Do not round intermediate steps. 2. Find the variance and standard deviation.
O The life of light bulbs is distributed normally. The variance of the lifetime is 100 and the mean lifetime of a bulb is 520 hours. Find the probability of a bulb lasting for at most 538 hours. Round your answer to four decimal places. Answer If you would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of the row and column or use the arrow keys to find the appropriate cell in the table and select it using the Space key. ny angle. 6 1 1 hp 9 a Z 2 W S X # 3 e d C A 64 $ 4 r f V % 5 t g 6 b Normal Table - to-z Normal Table -00 to z Oll y h & 7 n O u J * 8 m O i N k ( 9 < O alt 1 • JL 0 р : ctrl { [ ? / Tables O SBA + 11 Keypad Keyboard Shortcuts Submit Answer 1 USE YOUR SMARTPHONE FOR Oct 6 } ] 2:01 - 8 8 backspace 1 enter shift (in
The weights of steers in a herd are distributed normally. The variance is 40,000and the mean steer weight is 1000lbs. Find the probability that the weight of a randomly selected steer is greater than 600⁢lbs. Round your answer to four decimal places.
The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer weight is 1100⁢lbs. Find the probability that the weight of a randomly selected steer is between 919 and 1180⁢lbs. Round your answer to four decimal places.
Solve the last part what is the source of variability in the random variable? B. The sample size was weing
The Normal model N(150,10) describes the distribution of scores on the LSAT, a standardized test required by most law schools. Which of the following questions asks for a probability, and which asks for a measurement? Identify the type of problem and then answer the given question. a. A law school applicant scored at the 60th percentile on the LSAT. What was the applicant's LSAT score? b. A law school applicant scored 164 on the LSAT. This applicant scored higher than what percentage of LSAT test takers? a. Identify the type of problem. Statement a asks for a What was the applicant's LSAT score? (Round to the nearest integer as needed.) b. Identify the type of problem. Statement b asks for a This applicant scored higher than what percentage of LSAT test takers? |% (Round to the nearest integer as needed.)
Suppose that the speed at which cars go on the freeway is normally distributed with mean 78 mph and standard deviation 6 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. b. If one car is randomly chosen, find the probability that it is traveling more than 76 mph. __________c. If one of the cars is randomly chosen, find the probability that it is traveling between 77 and 80 mph. ___________d. 60% of all cars travel at least how fast on the freeway?_____________ mph.
What would be the correct way of doing this?
A uniform distribution has endpoints of 3 and 12. A. Determine the probability that a randomly selected value is either less than 4 or greater than 9. Report answer to 3 decimal places. B. Determine the value of the 70th percentile. Report answer to 1 decimal place.

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS

A random variable follows a binomial distribution with the probability of success for one trial at 0.745 and 18 randomly selected trials. Round to the fourth. a) Find the mean of the distribution. b) Find the standard deviation of the distribution c) Find the probability of exactly 13 successes.