Answer:
B
Step-by-step explanation:
the change in y and x are the same between the three points.
The answer would be “1/8” because there are 8 sides on the die. So that’s 8/8 sides. Each side represents 1. It would be 1/8.
Answer:
x=2
Step-by-step explanation:
combine like terms to get 15x=30. divide by 15 on both sides to get x=2
Answer:
a: 11/105
Step-by-step explanation:
Simplify the following:
12/35 - 5/21
Put 12/35 - 5/21 over the common denominator 105. 12/35 - 5/21 = (3×12)/105 + (5 (-5))/105:
(3×12)/105 + (5 (-5))/105
3×12 = 36:
36/105 + (5 (-5))/105
5 (-5) = -25:
36/105 + (-25)/105
36/105 - 25/105 = (36 - 25)/105:
(36 - 25)/105
| 3 | 6
- | 2 | 5
| 1 | 1:
Answer: 11/105
Answer:
(71.28, 78.72)
Step-by-step explanation:
We have the following information from the statement:
mean (m) = 75
sample standard deviation (sd) = 5
Sample size (n) = 13
Significance level (alpha) = 1 - 0.98 = 0.02
Degrees of freedom for t-d (df) = n - 1 = 13 - 1 = 12
The critical value would be:
t (alpha / 2) / df = T (0.01) / 12 = 2,681 (this for the table)
Margin of error equals:
E = t (alpha / 2) / df * sd / n ^ (1/2), replacing:
E = 2,681 * 5/13 ^ (1/2)
E = 3.72
Therefore, the interval of 98% confidence interval would be:
75 + 3.72 = 78.72
75 - 3.72 = 71.28
(71.28, 78.72)
