The table shows the distribution of household sizes in the United States for a recent year....
The table shows the distribution of household sizes in the United States for a recent year.
|
x |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
P(x) |
0.281 |
0.340 |
0.154 |
0.129 |
0.060 |
0.022 |
0.013 |
Find:
a)The mean
b)The variance
c) The Standard deviation
D) the expected value
Homework Answers
Add Answer to:
The table shows the distribution of household sizes in the United States for a recent year....
2) For the given probability Distribution, Complete the table and finds the mean, Variance and standard...
2) For the given probability Distribution, Complete the table and finds the mean, Variance and standard Deviation of the probability Distribution: (5 Points) P(x) 0.686 1 0.195 0.077 2 0.022 4 0.013 5 0.007 Variance: Standard Deviation: Mean: henning for themselves You
Recent research suggests that car ownership may have peaked. The following probability distribution table shows the...
Recent research suggests that car ownership may have peaked. The following probability distribution table shows the random variable, x, where x is number of cars owned by household: x p (x) 0 0.10 1 0.27 2 0.40 3 0.18 4 0.05 Determine the mean of x. (b) Determine the standard deviation of x.
In a recent year, the distribution of age for senators in the United States Senate was...
In a recent year, the distribution of age for senators in the United States Senate was unimodal and roughly symmetric with mean 65 years and standard deviation 10.6 years. Consider a simulation with 200 trials in which, for each trial, a random sample of 5 senators’ ages is selected and the mean age is calculated. Which of the following best describes the distribution of the 200 sample mean ages? (A) Approximately normal with mean 65 years and standard deviation 10.6...
Recent research suggests that car ownership may have peaked. The following probability distribution table shows the...
Recent research suggests that car ownership may have peaked. The following probability distribution table shows the random variable, x, where x is number of cars owned by household: x p(x) 0 .10 1 .27 2 .40 3 .18 4 .05 Determine the mean of x (Round the answer to two decimal places). . (b) Determine the standard deviation of x. (Round the answer to two decimal places)
The U.S. Census Bureau collects demographics concerning the number of people in families per household. Assume...
The U.S. Census Bureau collects demographics concerning the number of people in families per household. Assume the distribution of the number of people per household is shown in the following table: ________________ x P(x) _______________ 2 0.27 3 0.25 4 0.28 5 0.13 6 0.04 7 0.03 a) Calculate the expected number o f people in families per household in the United States. b) Compute the variance and standard deviation of the number of people in families per household.
The table below shows the probability distribution for x, the number that shows up when a...
The table below shows the probability distribution for x, the number that shows up when a loaded die is rolled: X P(X) 1 0.12 2 0.10 3 0.12 4 0.14 5 0.15 6 0.37 a) Find the mean of the distribution. b) Find the standard deviation of the distribution.
Complete parts (a) and (b) below. The number of dogs per household in a small town...
Complete parts (a) and (b) below. The number of dogs per household in a small town x P(x) 0 0.674 1 0.199 2 0.083 3 0.025 4 0.012 5 0.007 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. Find the variance of the probability distribution. Find the standard deviation of the probability distribution. (b) Interpret the results in the context of the real-life situation. A.A household on average has...
The number of persons living per household in a city was collected and were summarized. The...
The number of persons living per household in a city was collected and were summarized. The frequency table is given below: # people # households (millions 1 23 45 6 7 | 3.1 | 4.5 | 3.8 | 2.5 | 2.4 | 2.5 | 1.2 Define X as the number of people per household. (a) Write down the probability distribution of X. (b) Find P[X2 4] (c) Find P[2 S X< 4] (d) Find the mean, variance and standard deviation...
According to a recent Current Population Reports, the population distribution of number of years of education...
According to a recent Current Population Reports, the population distribution of number of years of education for self-employed individuals in the United States has a mean of 13.9 and a standard deviation of 2.3. (a) Identify the variable. -number of years of education -number of educated individuals in the United States -number of self-employed individuals in the United States -number of self-employed individuals (b) Find the mean and standard deviation of the sampling distribution of for a random sample of...
1. The following probability distribution represents the number of people living in a Household (X), and...
1. The following probability distribution represents the number of people living in a Household (X), and the probability of occurrence (P(X)). Compute the Expected Value (mean), the Variance and the Standard Deviation for this random variable. Show Your Calculations for the Mean. X 1 2 3 4 5 P(X) .33 .29 .27 .07 .04 2. Use the binomial formula to compute the probability of a student getting 8 correct answers on a 10...
2) For the given probability Distribution, Complete the table and finds the mean, Variance and standard Deviation of the probability Distribution: (5 Points) P(x) 0.686 1 0.195 0.077 2 0.022 4 0.013 5 0.007 Variance: Standard Deviation: Mean: henning for themselves You
The number of persons living per household in a city was collected and were summarized. The frequency table is given below: # people # households (millions 1 23 45 6 7 | 3.1 | 4.5 | 3.8 | 2.5 | 2.4 | 2.5 | 1.2 Define X as the number of people per household. (a) Write down the probability distribution of X. (b) Find P[X2 4] (c) Find P[2 S X< 4] (d) Find the mean, variance and standard deviation...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago