Solution: The given random experiment follows Binomial distribution with 
Let
be the number of adults who use their smartphones in meetings or classes.
Therefore, we have to find:

We know the binomial model is:






Therefore, the probability that fewer than 3 of them is 0.1111
First you divide L+W by 2 and you would get A/2=L+W then you would subtract L and get A/2 -L=W
Answer: option 3
Step-by-step explanation:
Where’s the picture? Or link?
Answer:
120
Step-by-step explanation:
90 x 100 ÷ 75 = 120