pesune sample from prolle= #10 on the previous page, om pute the endlional prola
ID: 3061900 • Letter: P
Question
pesune sample from prolle= #10 on the previous page, om pute the endlional prolaldity that a rat dealy sAmple is a Dimoaur Crane operstor IP YOU KNOW thst the person is a woman. The quetion Using the same in the to tand the probabil änd the 12. A certain computer password is S symbola long, with so "special" characters, so o it ia composed of just lower-case letters "a to a" and digits "0 to S. lf repeats are allowed, how many choices are possäble? 13. Wilma listens to the radio on the web. She listens to 10 stations, but she has her favorites, of course. In huow man ways could she rank her top THREE in order of best, second best, and third best? (She only ranks the top 3 stations, not all 10 stations) 14. You pay $10 to roll one die. If the die is a "our" then you win $40. Let z be your net result. Find the expected value and the standard deviation of s. Hint: fill in the probabilities for the probability distribution below. win: $30 lose: -$10 Extra Credit (2 points each; do on back; no partial credit) A) You have two dice: one red and one blue. The red die is typical with 1 to 6 on its sides, but the blue die has zero on three sides and has a one on the other three sides. If you roll the dice, find the probability that the sum is "ive B) If you fip a Tair" coin 4 timses, find the probablity that all 4 are heads, GIVEN THAT at least 3 are heads. Hint: this is CONDNTIONAL probability, so the answer is NOT equal to 1/16Explanation / Answer
Q 12 )
The total number of caharcters we have are a to z = 26 and 0- 9 = 10
Therefore number of characters are = 26+10 = 36
For selecting 5 symbols long , we have 36 choices for each symbol because repeats are allowed
Therefore number of ways = 365 = 60466176
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