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Results tagged with self-study
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user 338416
A routine exercise designed to test one's knowledge; often from a textbook, course, or test used for a class or self-study. This community's policy is to "provide helpful hints" for such questions rather than complete answers.
0
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Question on calculating probability of independent and mutually exclusive events
To answer my own question #3.
I suppose, since P[NL] = 0.35, and does not equal to P[N] * P[L] = 0.7 * 0.6 = 0.42, event N and L are are independent events.
Knowing how long a customer stays in a stor …
- 217
4
votes
2
answers
167
views
Finding the expected number of success
The scenario goes like this: a cell phone user has 1/3 of a chance to send a text message, and a 2/3 of a chance to receive a text message.
Question: what is the expected number of text messages recei …
- 217
3
votes
2
answers
244
views
Question on calculating probability of independent and mutually exclusive events
I am given the following question:
Monitor customer behavior in the Phonesmart store. Classify the behavior as buying (B) if a customer purchases a smartphone. Otherwise the behavior is no purchase ( …
- 217
1
vote
1
answer
431
views
Find Marginal CDF probability from PDF (2 random variables)
Given the following PDF of continuous 2 random variables:
$$
f_{X,Y}(x,y)=\begin{cases}
y^2 & 0\le y\le x\le 1;\newline
0 & \text{otherwise}.
\end{cases}
$$
Graph showing the region of i …
- 217
0
votes
0
answers
38
views
Find Marginal CDF probability from PDF (2 random variables) [duplicate]
Given the following PDF of continuous 2 random variables:
$$
f_{X,Y}(x,y)=\begin{cases}
y^2 & 0\le y\le x\le 1;\newline
0 & \text{otherwise}.
\end{cases}
$$
Graph showing the region of i …
- 217