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The random variableX has the followingprobability density function ("PDF"):
Calculate: P(x 1.5)
Suggested Answer: B
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45 comments · newest first
KR
Kristine
10 months ago
Just double-checking, but isn't D way too high?
GL
Glendora
11 months ago
I disagree, I think it's C, 0.320.
TA
Tamala
11 months ago
Wait, how do we even calculate P(x < 1.5? Sounds complicated!
NO
Noe
11 months ago
I'm pretty sure the answer is B, 0.250.
LO
Louis
11 months ago
The PDF looks tricky, but I think it's manageable.
DO
Dominga
12 months ago
I think the answer is around 0.250, but I can't recall how I got that number from the PDF. I hope I remember the right method!
GA
Gayla
12 months ago
I feel like I might be overthinking this. Wasn't there a shortcut for finding probabilities at specific points?
AS
Ashley
12 months ago
This looks similar to that practice question where we had to find the area under the curve. I think I need to set up the integral correctly.
BA
Barbra
1 year ago
I remember we practiced calculating probabilities from PDFs, but I'm not sure if I should integrate or just evaluate at 1.5.
LO
Louvenia
1 year ago
I've got this! The key is recognizing that we need to integrate the PDF to find the cumulative probability up to 1.5. I'm confident I can work through this.
PA
Paris
1 year ago
This looks straightforward. I just need to integrate the PDF from 0 to 1.5 to get the desired probability.
AU
Audria
1 year ago
Hmm, I'm a bit confused by the PDF function. I'll need to review my notes on how to work with these types of probability density functions.
AN
Annice
1 year ago
Okay, let's think this through step-by-step. I need to find the probability that X is less than or equal to 1.5 given the provided PDF.
CL
Clay
1 year ago
I'm not sure I fully understand this type of problem. I'll need to ask the professor for some clarification before attempting to solve it.
CH
Christene
1 year ago
Hmm, I'm a bit unsure about this one. I'll need to think through how the malpractice system impacts quality of care more broadly.
CH
Chau
1 year ago
I'm a bit confused on the certificate part. Do I really need to create a certificate and upload it somewhere? That seems like an extra step.
NA
Nakisha
1 year ago
Okay, let me think this through. The question is asking for the UPDATE statement, so I need to make sure I have the right syntax. I'm pretty sure it's SET, but I'll double-check the options just to be sure.
JA
Janey
1 year ago
I bet the answer is 'D) 0.484... and a third'. You know how these probability questions love to get all precise on us.
BE
Benton
1 year ago
Yeah, I agree. These probability questions can be tricky, but 'D) 0.484' seems like the most precise answer.
PE
Pearly
1 year ago
I think you're right, it does seem like the answer would be 'D) 0.484'.
MA
Magdalene
1 year ago
D) 0.484
VA
Vallie
1 year ago
C) 0.320
RA
Raina
1 year ago
B) 0.250
FR
Frank
1 year ago
A) 0.164
BE
Bernardo
1 year ago
I agree with you, it's probably 'D) 0.484'.
DA
Davida
1 year ago
I'm leaning towards 'B) 0.250'.
SH
Sheron
1 year ago
I think it's 'A) 0.164'.
LY
Lyndia
1 year ago
Wait, is this a trick question? What if the answer is actually 'E) All of the above'? You can never be too careful with these exam writers!
CE
Cecilia
1 year ago
No, I believe the answer is B) 0.250
CH
Chaya
1 year ago
B) 0.250
IN
Ines
1 year ago
I think it's A) 0.164
MI
Micheline
1 year ago
A) 0.164
AR
Ardella
1 year ago
I'm going to need my calculator for this one. Probability calculations and I don't always see eye to eye.
RO
Roslyn
1 year ago
B) 0.250
NA
Nadine
1 year ago
I know what you mean, probability can be tricky sometimes.
MO
Moon
1 year ago
A) 0.164
SH
Shizue
1 year ago
Hmm, integrating the PDF is the way to go here. I'll need to be careful with the limits to get the right answer.
FR
Francesco
2 years ago
Option A looks tempting, but the given PDF suggests we need to integrate the function to find the probability. Can't just eyeball this one.
RE
Remona
1 year ago
D) 0.484
MA
Mattie
1 year ago
C) 0.320
VI
Viola
1 year ago
B) 0.250
LE
Lelia
1 year ago
A) 0.164
AN
Annelle
2 years ago
I'm not sure, but I think the answer is D) 0.484.
CA
Cammy
2 years ago
I believe the answer is C) 0.320.
SH
Sharan
2 years ago
I think the answer is A) 0.164.