The random variable x is the number of houses sold by a realtor in a single month at the Sendsom's RealEstate office. Its probability distribution is given in the table. Find the standard deviation.House Sold (x)012345 6 7Probability P(x)0.24 0.010.12 0.160.01 0.14 0.11 0.21a 4.45Ob 2.62O c. 2.25Od 6.86

Answered: Image /qna-images/answer/3a7e1bbe-d083-4179-97b3-f5b044436e32.jpg

Answered: The random variable x is the number of…

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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Customers at a coffee shop. A coffee shop serves an average of 75 customers per hour during the morning rush. What are the mean and the standard deviation of the number of customers this coffee shop serves in one hour during this time of day? Would it be considered unusually low if only 60 customers showed up this coffee shop in one hour during this time of day? Calculate the probability that this coffee shop serves 70 customers in one hour during this time of day.
The probability histogram to the right represents the number of live births by a mother 47 to 51 years old who had a live birth in 2012. 0.30- 0.267 0.25- 0.233 0.20- -0.172 0.15- 0.112 0.094 0.10- 0.057 0.05- 0.028 0.037 0.00- 1 4 6 7 8 Child (a) What is the probability that a randomly selected 47- to 51-year-old mother who had a live birth in 2012 has had her fourth live birth? |(Type an integer or a decimal.) (b) What is the probability that a randomly selected 47- to 51-year-old mother who had a live birth in 2012 has had her fourth or fifth live birth? | (Type an integer or a decimal.) (c) What is the probability that a randomly selected 47- to 51-year-old mother who had a live birth in 2012 has had her sixth or more live birth? | (Type an integer or a decimal.) (d) If a 47- to 51-year-old mother who had a live birth in 2012 is randomly selected, how many live births would you expect the mother to have had? (Round to one decimal place as needed.) Probability 3-
The binomial probability distribution is right-skewed if: O pis 0.25 or smaller. O pis less than 0.50. O pis equal to 0.50. O p is greater than 0.50.
The probability distribution below is for the random variable X = the number of credits taken during the fall semester by a randomly selected student at a large university. Calculate the mean of X. Round to the hundredths place. Credits 14 15 16 17 Probabiblity 0.05 0.65 0.20 0.10
Five males with an X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the X-linked genetic disorder. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. child(ren) (Round to one decimal place as needed.) X 0 1 2 3 4 5 Does the table show a probability distribution? Select all that apply. A. Yes, the table shows a probability distribution. B. No, the random variable x's number values are not associated with probabilities. C. No, the random variable x is categorical instead of numerical. D. No, not every probability is between 0 and 1 inclusive. E. No, the sum of all the probabilities is not equal to 1. Find the mean of the random variable x. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. P(x)…
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.
Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0. 1 3. 4. 6. 7 Probability 0.059 0.121 0.162 0.178 0.216 0.128 0.084 0.052 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is 3.4. (Round to one decimal place as needed.) The variance is. (Round to one decimal place as needed.) es Enter your answer in the answer box and then click Check Answer. Clear All parts remaining pt.pdf re to search PrtScn
4.15 During the 2013 regular NBA season, DeAndre Jordan of the Los Angeles Clippers had the highest field goalcompletion rate in the league. DeAndre scored with 61.3% of his shots. Suppose you choose a random sample of 80shots made by DeAndre during the 2013 season. Let X = the number of shots that scored points.a. What is the probability distribution for X?b. Using the formulas, calculate the (i) mean and (ii) standard deviation of X.c. Use your calculator to find the probability that DeAndre scored with 60 of these shots.d. Find the probability that DeAndre scored with more than 50 of these shots.
Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 0 1 2 3 4 5 Probability 0.260 0.290 0.234 0.161 0.037 0.018 (a) Find the mean, variance, and standard deviation of the probability distribution.
Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
Answer number 15.
Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0 4 5 1 2 3 6 7 0 Probability 0.057 0.121 0.163 0.177 0.216 0.127 0.086 0.053 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is 3.4. (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.)

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