Answer:
There is an 84.97% probability that at least six wear glasses.
Step-by-step explanation:
For each adult over 50, there are only two possible outcomes. Either they wear glasses, or they do not. This means that we use the binomial probability distribution to solve this problem.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this problem we have that:

What is the probability that at least six wear glasses?

There is an 84.97% probability that at least six wear glasses.
Answer:
3 2/3 is greater
Step-by-step explanation:
3 2/3 is 3.6666 while √11 is 3.32
1. P times the quantity x is greater than 2.
2. P times the quantity x equals 2
Answer:
C
Step-by-step explanation:
substitute X=7 in 2x+8, answer 22
substitute X=5, answer 18
option C
substituting X=7 in (X+4)+(X+4) also gives 22
substituting X=5 also gives 18
Answer:
1 1/3 cups
Step-by-step explanation:
To double, multiply by 2
2/3 * 2
4/3
Change to a mixed number
3/3 + 1/3
1 1/3 cups