mili74
18.03.2022 •
Mathematics
A coin is biased such that a head is three times as likely to occur as a tail. Find the expected number of tails when this coin is tossed twice
Solved
Show answers
More tips
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home Parents or Environment: Who Has the Most Influence on a Child s Upbringing?...
- H Health and Medicine Is it true that working with a computer is harmful to your eyesight?...
- H Health and Medicine Boosting Immunity: A Complete Guide on How to Improve Your Body’s Natural Defenses...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- C Computers and Internet How to Teach Older Generations to Work with Computers?...
- G Goods and services How to Choose a Coffee Maker? The Ultimate Guide for Coffee Lovers...
- C Computers and Internet Porn Banner: What It Is and How to Get Rid Of It?...
Answers on questions: Mathematics
- M Mathematics Mr. Lou runs 5 miles in 42 minutes. He plans to run in a 25 mile race. Based on his current speed, about how long will it take him to complete the race? Hey...
- M Mathematics A fraction is shown. 8/16 Which expression is equivalent to this fraction?...
- M Mathematics Is -1,000 a rational number or an integer...
- M Mathematics Alfie tossed a paper cup in the air 350 times and recorded whether it landed right side up, upside down, or on its side. If Alfie tosses the paper cup more times, what...
- M Mathematics simplify the expression using the order of operations. (11−8×8×8)−2×6 wait some one tell me if 15 is the answer...
- M Mathematics I need help on this cause ima fail...
- M Mathematics Clare is painting some doors that are all the same size. She used 2 liters of paint to cover 1 ⅗ door. How many liters of paint are needed for 1 door?...
- M Mathematics Vikram is studying the square pyramid below. 33 2 in IG 1 28.4 34 2 in To find the surface area of the pyramid, in square inches, Vikram wrote (33.2) (342)+4 +44(34 2)(284)...
- M Mathematics I need help please!!...
- M Mathematics If you get $15 every week. how many weeks would it take to earn $319...
Ответ:
Complete question:
A coin is biased such that a head is three times as likely to occur as a tail. Find the expected number of tails when this coin is tossed twice.
1/2
Step-by-step explanation:
Head is 3 times as likely to occur as tail;
Hence,
Sample space for 2 tosses :
{HH, HH, HH, HH, HH, HH, HH, HH, HH, HT, HT, HT, HT, HT, HT, TT}
Expected probability (E(x)) = Σx*p(x)
P(x) = required outcome / Total possible outcomes
x : 0 1 2
p(x) : 9/166/161/16
Σx*p(x) : 0(9/16) + 1(6/16) + 2(1/16)
= 0 + 6/16 + 2/16
= 0 + 3/8 + 1/8
= 4/8
= 1/2
Please give brainliest! :)
Ответ:
answer:
Data set B
Step-by-step explanation:
because if you do the problem over and over and really think about it you will understand why it is B:) have a nice day