First, change the measurements of the pole to m so all of the units are the same.
41 cm=.41 m
72 cm=.72 m
Then, let x represent the height of the building
30/x=.72/.41
x=30*.72/.41
x=52.68 m
round to 52.7 m
There should be 45 pages for each topic
Answer:
c.is the average value for the random variable over many repeats of the experiment.
Step-by-step explanation:
Expected value of a discrete random variable:
To find the expected value of a discrete random variable, we multiply each outcome of the variable by it's probability, which over many repeats of the experiment, will give the average value, and thus, the correct answer is given by option c.
Even though a discrete random variable takes only discrete values, the mean can be a continuous(decimal) value.
Answer:
The answer is 3,500
Step-by-step explanation:
Last year's population is 500% of that of this year's population which is 700.
In other words: 
= 3,500 (ANS)
