600-225 = 375 students didn't attended the game.
So, the percentage of the people who didn't attented will be (375/600) × 100 = 62.5%
Answer:
x = 2.75
Step-by-step explanation:
3^2 +4^2 =c^2
9+16=25
5^2 =25
5-2.25= 2.75
Answer:
y=3x+3
Step-by-step explanation:
9=3(2)+c
9=6+c
c=3
Using a system of equations, we can determine that each adult ticket costs $45 and each child ticket costs $28.
Answer:
99% confidence interval for the mean value from the random number generator is a lower limit of 85.87 and an upper limit of 110.93.
Step-by-step explanation:
Confidence interval = mean +/- margin of error (E)
mean = 98.4
sd = 16.3
n = 15
degree of freedom (df) = n - 1 = 15 - 1 = 14
confidence level (C) = 99% = 0.99
significance level = 1 - C = 1 - 0.99 = 0.01 = 1%
t-value corresponding to 14 df and 1% significance level is 2.977.
E = t×sd/√n = 2.977×16.3/√15 = 12.53
Lower limit = mean - E = 98.4 - 12.53 = 85.87
Upper limit = mean + E = 98.4 + 12.53 = 110.93
99% confidence interval for the mean is between 85.87 and 110.93