In a college classroom some chairs are designed for lef-handers. suppose this classroom has 20 chairs, and 8 of them are made for lefies. if 5 students randomly select chairs and sit on them in this classroom, what is the probability that at least 4 of those selected will be seats for lefies?

0.0578

Step-by-step explanation:

Given : Number of chairs = 20

Number of chairs made for lefties =8

Number of chairs made for righties= 20-8=12

Now, total number of way for selecting 5 chairs from 20  =

Number of ways to select at least 4 seats for lefies :-

Now, the probability that at least 4 of those selected will be seats for lefties :-

hence, the required probability = 0.0578

your answer would be 10x - 1

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|