Purchase Solution

Probability of Occurance

Not what you're looking for?

Ask Custom Question

A person purchases a package of 10 ball-point pens which, unknown to the purchaser, contains 4 defective pens. Of the first 2 pens used by the purchaser, find the probability that at least 1 pen is defective.

Purchase this Solution
Solution Summary

This solution calculates the probability that one will pick up a defective pen from a package of 10.

Solution Preview

There is no need to use Excel for this one.

There are 10 pens in the box and 4 of them are defective. That means 4 out of 10 pens are defective, or 4/10, or 40%.

See, you ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

View More Free Quizzes
Related BrainMass Solutions

  • Collectively Exhaustive Event

    The solution gives probability of joint occurance of collectively exhaustive event.

  • Finding the expected value of a game

    Remind yourself that the expected value is given as the sum of each possible occurance times the probability of occurance. Let us calculate this now. In our case, there are two events that could happen -we roll at least one 5, or we don't.

  • Probability - Multi Project

    State of the Probability of Projected Return Economy Occurance 1 2 3 Recession 0.1 9% 3% 15% Stable 0.7 13% 10% 11% Boom 0.2 17% 22% 5% a. Calculate each project's expected return, variance, and standard deviation. b.

  • C++ Program

    ='' && source[j] == dest[k];j++,k++);
    if (k>0 && dest[k]=='') found++;
    }
    //End of for loop

    cout<<"nQuery String is:"< if (found)
    cout<<"nString found and its occurance is:"< else

  • Expected value;standard deviation;coefficient of variation

    Thanks 7.14 Sales Probability of Occurance Ri pi (Ri-R-) $800 2% ($1,200) $1,000 8% ($1,000) $1,400 20% ($600) $2,000 40% $0 $2,600 20% $600 $3,000 8% $1,000 $3,200 2% $1,200 Expected return = R- Spi*Ri 2000 Standard

  • power point presention on the abuse of drugs in the north of england

    what health policies are in use to treat and prevent the occurance of drug abuse in different areas of the uk. what drugs are the most used and where in the uk.

  • Pseudo Code: Output Position of First and Last Occurance - CAT

    107771 Pseudo Code: Output Position of First and Last Occurance - CAT Modify the pseudo code to (a) Output position of the first occurrence of the word "CAT" (b) Output the position of the last occurrence of the word "CAT" See attached file for full

  • A detailed explanation of applying functions to text

    198700 Suppose f is a function that returns the result of reversing the string of symbols given as its input Suppose f is a function that returns the result of reversing the string of symbols given as its input, and g is a function that returns the concatenation

  • Geological energies

    Bridgeport Connecticut - very low probability of occurance here. This regions bears no significant risk to such an event over the next 50 years. 3.

View More Related Solutions