Answer:
"23,520"
Step-by-step explanation:
one trip: 14 passengers
one day: 3 trips
passengers: 80
80x14= 1,120
1,120x3= 3,360
3,360x7= 23,520
Answer:
y = 4ⁿ
Step-by-step explanation:
where n is the round number and y the people receiving.
Answer:
a = 3 b = 0
Step-by-step explanation:
(a,-2) b= -2
-2=2a -8
6=2a
3=a
(4,b) a=4
b=2(4)-8
b=8-8
b=0
Answer:
Step-by-step explanation:
Given that in order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less than two hours in estimating the average time it takes to install tile flooring.
Std deviation =4.5 errors
95% confidence interval = Mean±1.96*std dev
Hence we have

Sample size should be 20.