Answer:
a. 12
b. 7.200 and 2.683
Step-by-step explanation:
The computation is shown below:
Given that
P = 0.40 and n = 30
a)
The expected value of received e-mails is
= n × p
= 30 × 0.4
= 12
b)
The variance of emails received is
= n × p × (1 - p)
= 30 × 0.4 × 0.6
= 7.200
Now
The standard deviation of emails received is
= sqrt(variance)
= 2.683
We simply applied the above formula
Answer:
it is c but probably be but I'm leaning towards c
To do this you must divide the two numbers -23÷45 is -0.511111....
Answer:
Last week: 4.32inches + 6.86inches =11.18inches
This week: 7.89inches
HOW MUCH MORE IT SNOWED LAST WEEK
=11.18inches - 7.89inches
=3.29inches
Answer:
The amount is $239.43
Step-by-step explanation:
The amount she will earn after 5 years is given by
A= p(1+r/n)^(nt)
P = $200
r = 0.036
n = 12*5 = 60
t = 5
A= 200(1+0.036/60)^(300)
A= 200(1+0.0006)^(300)
A= 200(1.0006)^300
A= 200(1.19715)
A= 239.43
The amount is $239.43
