# probability and statistics.

posted by .

I am preparing for a chapter test in my prob/stat class and since my teacher no longer cares about our class and the textbook is as confusing as a foriegn languaga, i am in need of help. i am trying to review an old quiz ao here is one of the questions.

the probability that a costomer selects 1,2,3,4 or 5 items at a convenience store are 3.02,.012,.023,.018 and.015, respectively.

find P(X>3.5)
find P(X<5)

• probability and statistics. -

I think there's a mistake with the probabilities were given. 1) probabilities can't be >1 (you get greater than 100% chance). 2) the probabilities don't add up to 1

here is what I think they should be:
.32, .12, .23, .18, .15

P(x>3.5) = probability that a customer selects more than 3.5 items = p(4) + p(5) = .18 + .15

you can do the other one by yourself.

• probability and statistics. -

23

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Based on the content structure of the provided text passage:

The passage is a discussion thread about a probability and statistics question. It includes a student asking for help with a specific problem and another student providing a partial answer and some feedback.
single_question_with_answer

the passage contains a single mathematical question (finding probabilities p(x>3.5) and p(x<5) given a probability distribution) and provides a partial answer to one part of the question (p(x>3.5)).
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
# probability and statistics.

posted by .

I am preparing for a chapter test in my prob/stat class and since my teacher no longer cares about our class and the textbook is as confusing as a foriegn languaga, i am in need of help. i am trying to review an old quiz ao here is one of the questions.

the probability that a costomer selects 1,2,3,4 or 5 items at a convenience store are 3.02,.012,.023,.018 and.015, respectively.

find P(X>3.5)
find P(X<5)

• probability and statistics. -

I think there's a mistake with the probabilities were given. 1) probabilities can't be >1 (you get greater than 100% chance). 2) the probabilities don't add up to 1

here is what I think they should be:
.32, .12, .23, .18, .15

P(x>3.5) = probability that a customer selects more than 3.5 items = p(4) + p(5) = .18 + .15

you can do the other one by yourself.

• probability and statistics. -

23

## Similar Questions

1. ### algebra

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A teacher provides pizza for his class if they earn an a average on any test the proability of the class getting an A average on one of his test is 8% What is the probability that the class will not earn a pizza for the firt seven …
3. ### Chemistry

Our class did an expeiment of adding sodium carbonate and calcium chloride. The experiment only yielded 28% of the calculated yield. The class did the experiment as a group (there are only 4 students in our class) and the experiment …
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for mu homework, we are making histograms. on the assignment, we need to list the class limits, class boundaries, midpoint, frequency and relative frequency for each class. i know how to find all of those except for the midpoint since …
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this is a problem in my statistics class, and I am lost to me, it is confusing or missing something here is the problem please help grade points are assignede as follows: a=4,b=3,c=2,d=1,f=0. grades are weighted according to credit …

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I have a dilemma; my English professor doesn’t give us our grades so I currently don’t know what percent I am at in the class. I really need to know since I need to know if I’ll be passing or not. He doesn’t grade anything …

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user
Based on the content structure of the provided text passage:

The passage is a discussion thread about a probability and statistics question. It includes a student asking for help with a specific problem and another student providing a partial answer and some feedback.

TYPE: SINGLE_QUESTION_WITH_ANSWER

The passage contains a single mathematical question (finding probabilities P(X>3.5) and P(X<5) given a probability distribution) and provides a partial answer to one part of the question (P(X>3.5)).