The number of homes sold by a realtor during a month has the following probability distribution:...
The number of homes sold by a realtor during a month has the following probability distribution:
| Number Sold | Probability |
| 0 | 0.10 |
| 1 | 0.40 |
| 2 | 0.50 |
The standard deviation of the number of homes sold by the realtor during a month is the closest to _______.
A) 0.44
B) 1.40
C) 0.66
D) 1.35
The standard deviation of the discrete random variable X is calculated as SD(X)=σ=σ2−−√.SD(X)=σ=σ2.
The variance of the discrete random variable X is calculated as Var(X) = σ2=∑(xi–μ)2P(X=xi).
Homework Answers
Add Answer to:
The number of homes sold by a realtor during a month has the
following probability distribution:...
Please show working. The number of homes sold by a realtor during a month has the...
Please show working.
The number of homes sold by a realtor during a month has the following probability distribution Number Sold 0 Probability 020 0.40 0.40 2 What is the expected number of homes sold by the realtor during a month? O 1.2 O 15 O 2
A discrete random variable X has the following probability distribution:
A discrete random variable X has the following probability distribution: x7778798081 P(x) 0.150.150.200.400.10Compute each of the following quantities. i. P(X = 80) ii. P(x > 80) iii. P(X ≤ 80) iv. The mean, μ of x. v. The variance, σ2 of X. vi. The standard deviation, σ of X.
The random variable x is the number of houses sold by a realtor in a single...
The random variable x is the number of houses sold by a realtor in a single month at the Sendersom's Real Estate office. Its probability distribution is as follows. Houses Sold (x) P(x) 0.001 0.015 0.088 0.264 0.396 0.237 Find the probability of getting at least three houses sold? .897 O O O O C
The random variable x is the number of houses sold by a realtor in a single month at the Sendsom's Real Estate office
The random variable x is the number of houses sold by a realtor in a single month at the Sendsom'sReal Estate office. Its probability distribution is as follows. Find the expected number of housessold in a month.Houses Sold (x) Probability P(x)0 0.241 0.012 0.123 0.164 0.015 0.146 0.117 0.21A) 3.50 B) 3.35 C) 3.40 D) 3.60I'm not sure if the answer is A or C can someone please help me.
A discrete random variable X is defined by the following probability distribution X 2 7 9...
A discrete random variable X is defined by the following probability distribution X 2 7 9 10 P ( X = x ) 0.08 0.12 0.38 0.42 Find the following : μ = E ( X ) E(X^2) . E ( 2X + 3 ) E ( 4X − 8 ) σ ^2 = Var ( X ) σ = SD ( X )
In the following probability distribution, the random variable x represents the number of activities a...
In the following probability distribution, the random variable x represents the number of activities a parent of a 6 th- to 8th-grade student is involved in. Complete parts (a) through (f) below.x01234P(x)0.3670.1330.2090.1160.175(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 below.(c) Compute and interpret the mean of the random variable x .The mean...
In the following probability distribution, the random variable x represents the number of activities a parent...
In the following probability distribution, the random variable x represents the number of activities a parent of a K to 5 th-grade student is involved in. Complete parts (a) through (f) below.x01234P(x)0.1670.1940.3440.1780.117(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 below.(c) Compute and interpret the mean of the random variable x .The mean...
Based on past records, below is the Discrete Probability Distributiondescribing the number of cars a Ford...
Based on past records, below is the Discrete Probability Distributiondescribing the number of cars a Ford car salesman sells daily. ROUND ALL ANSWERS TO TWO (2) DECIMAL PLACES. Cars Sold,x Probability, P(x) xP(x) x-E(x) [x-E(x)]2 [x-E(x)]2P(x) 7 0.30 9 0.40 12 0.30 Expected Value, E(x) Variance Standard Deviation
please help with all. In the following probability distribution, the random variable x represents the number...
please help with all.
In 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 (1) below. * 1 0 1 2 3 4 5 P(x) 0.269 0 206 0.224 0.239 0.062 (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 (6) Graph the discrete...
29. Determine if the following table represents a discrete probability distribution, where x represents the number...
29. Determine if the following table represents a discrete probability distribution, where x represents the number of pizza toppings that a customer may order. x 0 1 2 3 4 P(x) 0.15 0.10 0.25 0.25 0.25 a) No, because Ex+1 b) No, because & p(x) #1 c) Yes, because p(x) = 1 d) Yes, because x = 1 30. Use the table on #29 and find the probability that a randomly select customer will ordered at most 1 toppings a).25...
Please show working.
The number of homes sold by a realtor during a month has the following probability distribution Number Sold 0 Probability 020 0.40 0.40 2 What is the expected number of homes sold by the realtor during a month? O 1.2 O 15 O 2
The random variable x is the number of houses sold by a realtor in a single month at the Sendersom's Real Estate office. Its probability distribution is as follows. Houses Sold (x) P(x) 0.001 0.015 0.088 0.264 0.396 0.237 Find the probability of getting at least three houses sold? .897 O O O O C
please help with all.
In 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 (1) below. * 1 0 1 2 3 4 5 P(x) 0.269 0 206 0.224 0.239 0.062 (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 (6) Graph the discrete...
29. Determine if the following table represents a discrete probability distribution, where x represents the number of pizza toppings that a customer may order. x 0 1 2 3 4 P(x) 0.15 0.10 0.25 0.25 0.25 a) No, because Ex+1 b) No, because & p(x) #1 c) Yes, because p(x) = 1 d) Yes, because x = 1 30. Use the table on #29 and find the probability that a randomly select customer will ordered at most 1 toppings a).25...
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