For every person that walked there were 12 who drove and if the 270 made the trip then 87 walked
The answer would be 2 because 3+3+6+6=18 and the number of sticky notes and envelopes are equal.
Answer:
The amount of work completed by Jing in 1 hour is 0.075 which is option A
Step-by-step explanation:
Melissa & Jing can complete the work in 5 hours
This means that the amount of work completed by Melissa & Jing working together in 1 hour is (1÷5) = 0.2
Melissa will do the job in 8 hours, which means that the amount of job completed by Melissa working alone in 1 hour is (1÷8) = 0.125
The amount of work completed by Jing when he works alone in 1 hour will be the difference of amount of work completed by both of them in 1 hour with the amount completed by only Melissa in 1 hour.
There Amount of work completed by Jing in an hour = 0.2 - 0.125 = 0.075
Answer:
The gradient is m=1/3
Step-by-step explanation:
The gradient, known as the slope, is the rate of change, defined as the change in y divided by the change in x. In this case, we will select two points from the line and calculate the slope from there. I selected (0,3) and (3,4) to demonstrate:
Slope=m=(y2-y1)/(x2-x1)=(4-3)/(3-0)=1/3
Therefore, the gradient/slope is 1/3.
Answer:
The answers are;
a. The probability of more than one death in a corps in a year is 0.12521.
b. The probability of no deaths in a corps over five years is 4.736 × 10⁻².
Step-by-step explanation:
For Poisson Distribution we have
Pₓ(k) =
Where:
λ = Mean per unit time
k = Specified data point
t = time
e = Euler constant
a. The probability of more than one death in a corps in a year is given by
The mean of the Poisson distribution for one year is given as
λ·t = 0.61 × 1 = 0.61
Therefore by using complement principle, we have
P (X >1) = 1 - P(X = 0) - - P(X = 1)
=1- -
= 1 - 0.543 - 0.3314
= 0.12521
b. Here we have t = 5
Therefore the mean = λ·t = 0.61×5 = 3.05
The probability of there being no deaths in a corps for over five years is
P (X =0) = = 4.736 × 10⁻²
The probability is 4.736 × 10⁻² .