Answer:The mean number of checks written per day = 0.3370
The standard deviation = 0.5805
The variance = 0.3370
Step-by-step explanation:
Let the random variable x represent the number of checks he wrote in one day.
Given : The number of checks written in last year = 123
Let the number of days in the year must be 365.
Now, the mean number of checks written per day will be :-

We know that in Poisson distribution , the variance is equals to the mean value .


Thus, Standard deviation = 0.5805
Answer:
I think it is D. Because x=x and there's infinite possibilities.
Answer:
here
Step-by-step explanation:
here
u can see in pictures
Answer: y =7/4x
Step-by-step explanation:
The y-intercept is 0. To find the slope, do the change in y over the change in x. At the point on the graph, there is a slope of 14/8 = 7/4
Answer:
Simple! The answer is yes.
Step-by-step explanation:
Simply put the equations into Desmos graphing calculator and it will show you that the equations are parallel. :))