Afellow classmate tosses 5 coins and finds that 3 of them come up tails. which of the following is the best conclusion for her to come to? . a. this could easily happen with a fair coin after only 5 flips.. b. if she flips the coins once more, they will all come up heads. . c. she needs to keep flipping the coins until she gets 50% heads in order to determine if they are fair. . d. the coins are unfair.

Option: A is the correct answer.

A.This could easily happen with a fair coin after only 5 flips.

As we know that when a coin is tossed 5 times than the total number of outcomes that are resulting from these flips are:

where:

Hence, the total outcomes that are possible are: 32

Also, when a coin is fair any of the possibility could come up:

 Hence, option: A is the correct answer.

answ9x x 3=

step-by-step explanation:

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet