Journey's family went to dinner as a family. The amount for dinner was $70, they want to leave a 20% tip. How much will they pay in total? O $14.00
O $28.00
O $56.00
O $84.00

Step-by-step explanation:

1.Find the sample size, n, and the sample proportion. The sample proportion ρ is the number in the sample with the characteristic of interest, divided by n.

2. Multiply the sample proportion by 1 - ρ.

3. Divide the result by n.

4. Take the square root of the calculated value.  You now have the standard error