Answer:
Mean = 0.38082 checks per day
Variance = 0.38082
Standard deviation = 0.61711
Step-by-step explanation:
In a Poisson distribution, the variance (V) is equal to the mean value (μ), and the standard deviation (σ) is the square root of the variance.
A year has 365 days,, if 139 checks were written during a year, the mean number of checks written per day is:
Therefore, the variance and standard deviation are, respectively:
Answer:
Step-by-step explanation:
If the ratio of triangle = 6:3:7
Total ratio = 6+3+7 = 16
The sum of angle in a triangle is 180°
1st angle= 6/16 × 180 = 6 × 11.25
= 67.5°
2nd angle= 3/16 × 180 = 3 × 11.25
= 33.75°
3rd angle= 7/16 × 180 = 7 × 11.25
= 78.75°
Largest is 78.75° and smallest is 33.75°
Answer:
9,-4
Step-by-step explanation:
-9×4=-36
Negative × Positive = Negative
Answer: y≤4x+3 and y≤-3x-5
Step-by-step explanation:
The slope of the first line is 4. The slope of (-1,-1) and (0,3) is 4. And the line passes through 3, so the y-intercept is 3.
The slope of the second line is 3. The slope of (-3,4) and (-1,-2) is -3. And the line passes through -5, so the y-intercept of the second line is -5
Answer:
I and G
Step-by-step explanation:
