Answer:
Below.
Step-by-step explanation:
The sample space is a list of all the possible results of choosing a ball =
{R, G, Y, B}.
Answer:
90% confidence interval for the mean commute time of working adult Calgary residents is between a lower limit of 26.72 minutes and an upper limit of 30.28 minutes.
Step-by-step explanation:
Confidence Interval = Mean + or - Error margin (E)
mean = 28.5 minutes
sd = 24.2 minutes
n = 500
degree of freedom = n - 1 = 500 - 1 = 499
confidence level = 90%
t-value corresponding to 499 degrees of freedom and 90% confidence level = 1.64801
E = t × sd/√n = 1.64801 × 24.2/√500 = 1.78
Lower limit = mean - E = 28.5 - 1.78 = 26.72 minutes
Upper limit = mean + E = 28.5 + 1.78 = 30.28 minutes
90% confidence interval is between 26.72 and 30.28 minutes.
<h3>
Answer:</h3>
30.2833 L
<h3>
Step-by-step explanation:</h3>
(x L)/(8 gal) = (3.785411784 L)/(1 gal) . . . . exact conversion
Multiply by 8 gal.
... x L = (8 gal) × (3.785411784 L)/(1 gal) = 30.283294272 L
8 gallons ≈ 30.2833 L
Answer:
5
8
3
15
8
16
6
6
10
3
3
9
14
6
9
9
Step-by-step explanation:
Answer:
2x^2 - x - 15 = 0.
Step-by-step explanation:
In factor form this is
(x + 5/2)(x - 3) = 0
x^2 + 5/2x - 3x - 15/2 = 0
x^2 - 1/2x - 15/2 = 0
Multiply through by 2:
2x^2 - x - 15 = 0.
