Help this is a hard question...
2 answers:
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Answer:
a) 471.5 kilo-watt hours.
b) 31.76 kilo-watt hours
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For the population:
Mean 471.5 kilo-watt hours.
Standard deviation of 187.9 kilowatt-hours.
For the sample:
Sample size of 35, by the Central Limit Theorem:
a) Mean
471.5 kilo-watt hours.
b) Standard deviation
31.76 kilo-watt hours
Answer:
<h2>x (rounded) = 19.1</h2>Step-by-step explanation:
Since The figure shows a right triangle then
Answer:
aka 9 units
Step-by-step explanation:
Its pretty simple so what u do is count the sqaures then multiply them and ill do it for you
H=3
B=6
and the formula for a triangle is A= so its 3x6/2=9
The answer is 9
