Given :
p = 0.68
margin of error, E = 0.1
99% confident interval
alpha, α = 1 - 0.99
= 0.01
∴ 
(z-critical value)
Sample size = 
= 144.37
= 145 (rounded off)
Therefore, there are 145 businesses does she need to sample to meet this criteria.
its a. numerical expression.
Answer: 23
Step-by-step explanation:
Answer:
5 / 6
Step-by-step explanation:
The green numbers: 1, 2, 5
The even numbers: 2, 4, 6
Since 2 is an overlap, we'll only count it once.
Total outcomes: 6
Successful outcomes: 5
Probability: 5 / 6
20 = 5(-3 + x) Multiply 5 into (-3 + x)
20 = -15 + 5x Add 15 on both sides
35 = 5x Divide by 5 on both sides to get x by itself
7 = x
20 = 5(-3 + x) Divide 5 on both sides
4 = -3 + x Add 3 on both sides to get x by itself
7 = x
