Assume that when adults with smartphones are randomly selected, 53% use them in meetings or classes. If 8 adult smartphone users are randomly selected, find the probability that at least 3 of them use their smartphones in meetings or dasses
The probability is
(Round to four decimal placer as needed)

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

i just took the test, the correct answer is .. 31.5 in.

the answer is c)8

step-by-step explanaction: