wlal is a probablity of having among 3 letters one R? Not at least one, but exac
ID: 3071360 • Letter: W
Question
wlal is a probablity of having among 3 letters one R? Not at least one, but exactly one What is a probability of having among 3 letters two Rs? Not at least two, but exactly two e) What is a probability that your 2" disk will be R? f) What is a probability that your 2h disk will be of color different than R? 4. You have a fair coin and a fair coin flipping process (process of flipping this coin results in random What is a probability of getting 2 Heads (HH) outcome in 2 flips? b) What is a probability of getting 2 Heads in 3 flips? ) What is a probability of getting 3 Heads (HHH) in 3 flips? d) What is a probability of getting at least 2 Heads in 3 flips? What is a probability of getting 2 Heads in 1 flip? f) What is a probability of getting 4 Heads in 4 flips? You play a lottery in which you choose 6 numbers out of 36 (a number can be chosen only once, and this is not an order dependent drawing). Picking the winning 6 numbers pays 1MS. One ticket costs 1 a) What are your chances of winning? How many 6-number picks you need to purchase in order to be sure that you have the winning six? c) Does it make sense to pool 15 equally contributing people to purchase the number of tickets needed to be sure of having the winning six? 6. How many 2 letter words could you design using English alphabet having 26 letters? Two same letters, e.g "Oo", are not permitted How many words of length between 2 and 10 letters could you design using English alphabet having 26 letters? Exact number is required (three or even ten significant digits will not do for large numbers; you must do better than that). All words can have any letter more than once. You must use Excel to calculate. Provide printout and submit Excel file Having a set of 10 digits (10 arabic numeral symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9) calculate number of 2-digit permutations with repetitions There are 6 types of apples available at a market stand, in quantities of hundreds of each type. You want a total of 3 apples however, among the 3 you want to have at least one of the specific type you like the most (Roxbu 8. How many ways are there to choose overall? How many ways are there to choose to satisfy your taste? f the seller randomly picks apples for you, what is the probability that you will get a mix you want? b)Explanation / Answer
#7.
Each letter can be selected in 26 ways.
Words of length 2 are 26^2
length 3 are 26^3 and so on
length 10 are 26^10
Hence total number of possible words are 26^2 + 26^3 + 26^4 + 26^5 + 26^6 + 26^7 +26^8 + 26^9 + 26^10
= 146,813,779,479,484
#9
a)
Total number of ways to choose apples = 6C1*6C1*6C1 = 6^3 = 216
b)
if we consider of not selecting an apple of your taste, then there are only 5 types of apples to select from.
Requried number of ways are 216 - 5^3 = 91
c)
Required probability = 91/216 = 0.4213
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