Answer:
p=1, q=5. (1, 5).
Step-by-step explanation:
8p+7q=43
2-7=-q
------------------
-q=-5
q=5
--------
8p+7(5)=43
8p+35=43
8p=43-35
8p=8
p=8/8=1
Answer:
The probability that on a randomly selected day the statistics professor will have five messages is 0.1755.
Step-by-step explanation:
Let the random variable <em>X</em> represent the number of e-mail messages per day a statistics professor receives from students.
The random variable is approximated by the Poisson Distribution with parameter <em>λ</em> = 5.
The probability mass function of <em>X</em> is as follows:

Compute the probability that on a randomly selected day she will have five messages as follows:


Thus, the probability that on a randomly selected day the statistics professor will have five messages is 0.1755.
Answer:
-18x4
Step-by-step explanation:
Answer:
62
Step-by-step explanation:
y+94+137+67= 360
y=62
Answer:
x=-2/3
Step-by-step explanation: