The answer is e because I look it up
Answer:
810 frames
Step-by-step explanation:
30 frames per 1 sec : 'f' frames per 27 sec
30 x 27 = 810
The formula to calculate the sample size is:
n = Z number * standard deviation/ confidence estimate)^2
The z number for 95% confidence is 1.96
The standard deviation is given as 26 minutes.
The confidence estimate is given as 5 minutes.
The sample size is: (1.96 * 26/5)^2 = 103.87 = 104 shoppers.
