Statistics Expert Q&A
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SS
Sudhir Sharma
about 20 hours ago
Which of the following are required conditions for the distribution of a discrete random variable X that can assume values xi?
A) 0 ≤ p(xi) ≤ 1 for all xi
B)
C) Both a and b are required conditions.
D) Neither a nor b are required conditions.
A) 0 ≤ p(xi) ≤ 1 for all xi
B)
C) Both a and b are required conditions.
D) Neither a nor b are required conditions.
TM
terry michel
about 20 hours ago
The number of accidents that occur annually on a busy stretch of highway is an example of:
A) a discrete random variable.
B) a continuous random variable.
C) expected value of a discrete random variable.
D) expected value of a continuous random variable.
A) a discrete random variable.
B) a continuous random variable.
C) expected value of a discrete random variable.
D) expected value of a continuous random variable.
AN
anima neupane
about 21 hours ago
The weighted average of the possible values that a random variable X can assume,where the weights are the probabilities of occurrence of those values,is referred to as the:
A) variance.
B) standard deviation.
C) expected value.
D) None of these choices.
A) variance.
B) standard deviation.
C) expected value.
D) None of these choices.
LK
Logan Kindig
about 21 hours ago
Which of the following is not a required condition for the distribution of a discrete random variable X that can assume values xi?
A) 0 ≤ p(xi) ≤ 1 for all xi
B)
C) p(xi) > 1 for all xi
D) All of these choices are true.
A) 0 ≤ p(xi) ≤ 1 for all xi
B)
C) p(xi) > 1 for all xi
D) All of these choices are true.
ZF
Zohaib Farooq
about 22 hours ago
The Poisson distribution is applied to events for which the probability of occurrence over a given span of time,space,or distance is very small.
DS
DICKSON SENGERA
about 22 hours ago
The largest value that a Poisson random variable X can have is n.
MM
McKenna Merritt
about 22 hours ago
A function or rule that assigns a numerical value to each outcome of an experiment is called:
A) a sample space.
B) a probability distribution.
C) a random variable.
D) None of these choices.
A) a sample space.
B) a probability distribution.
C) a random variable.
D) None of these choices.
DH
Daniel Hodges
about 22 hours ago
A table,formula,or graph that shows all possible values a random variable can assume,together with their associated probabilities,is called a(n) :
A) probability distribution.
B) discrete random variable.
C) expected value of a discrete random variable.
D) None of these choices.
A) probability distribution.
B) discrete random variable.
C) expected value of a discrete random variable.
D) None of these choices.
Has Verified Answer
MT
Mallika Thanasanti
about 23 hours ago
The number of customers making a purchase out of 30 randomly selected customers has a Poisson distribution.
SM
Stephanie moore
about 23 hours ago
The Poisson probability distribution is a continuous probability distribution.
LM
laxmi mangrati
1 day ago
The mean of a Poisson distribution,where μ is the average number of successes occurring in a specified interval,is μ.
CB
Carey Barbree
1 day ago
The Poisson random variable is a discrete random variable with infinitely many possible values.
NW
Nicole Williamson
1 day ago
The number of customers arriving at a department store in a 5-minute period has a Poisson distribution.
ZZ
Zainab Zaini
1 day ago
The number of accidents that occur at a busy intersection in one month is an example of a Poisson random variable.
MA
Muhammad Ammar
1 day ago
Faculty rank (professor,associate professor,assistant professor,and lecturer)is an example of a discrete random variable.
BB
Bryanna Booker
1 day ago
For a random variable X,E(X + 2)− 5 = E(X)− 3,where E refers to the expected value.
JA
Jamal Abumonshar
1 day ago
Another name for the mean of a probability distribution is its expected value.
JM
Just me Not we
1 day ago
For a random variable X,if V(cX)= 4V(X),where V refers to the variance,then c must be 2.