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:
D.payment history
Step-by-step explanation:
Answer:
y = 2x + b (the second answer choice)
Step-by-step explanation:
The slope-intercept form is y = mx + b (the m representing slope and the b representing y-intercept). Put the points in ratio form as a fraction and subtract the ratio with the smallest numbers from the ratio with the largest ratio (5/1 - 1/-1) to get 4/2. When simplified, it becomes 2/1, so the slope is 2. Using the slope found previously, subtract 1 from the x of (1, 5) and 2 from the y of (1, 5) to get the y-intercept. The resulting point is (0, 3), so the y-intercept is 3. Replace the m with the found slope (2) and b with the found y-intercept (3) to end up with y = 2x + 3.
The answer is B, they are paid based on a salary not amount of hours worked.
$ 159,744.59 will be in the account after 20 years.
Answer: Option A
<u>Step-by-step explanation:</u>
Need to find out the amount present in the account after 20 years. The formula to find out the future value is,
Here
p : amount deposit monthly =$500
r : rate of interest = 
= 0.0275
n : 12(compound monthly)
t : time =20
By substituting all the given datas in the above equation, we get
