Tips = 15.50 - 12.50 = 3.00
Covert the tips to percentage
3 ÷ 12.50 x100% = 24%
It is more than 20%
The actual answer is 154 but the closest estimate would be 150.
Just multiply the number of gallons filled her gas tank (14) and how many time she filled it (11).
Answer:
605100
Step-by-step explanation:
= 6.051 × 105
(scientific notation)
= 6.051e5
(scientific e notation)
= 605.1 × 103
(engineering notation)
(thousand; prefix kilo- (k))
= 605100
(real number)
Step-by-step explanation:
Confidence interval = mean ± margin of error
CI = μ ± ME
The mean is μ = 8.7.
Margin of error = critical value × standard error
ME = CV × SE
At 95% confidence and 9 degrees of freedom, CV = 2.262.
SE = s / √n
SE = 3.3 / √10
SE = 1.04
The margin of error is:
ME = 2.262 × 1.04
ME = 2.36
CI = 8.7 ± 2.36
CI = (6.34, 11.06)
Answer:
Put them in 2 teams. 18 boys so 9 in each group. 24 girls so 12 in each group.
Step-by-step explanation:
