Answer: a) 0.1587 b) 0.0618
Step-by-step explanation:
Let x be the random variable that represents the monthly demand for a product.
Given : The monthly demand for a product is normally distributed with mean = 700 and standard deviation = 200.
i.e. and
a) Using formula , the z-value corresponds to x= 900 will be :
Now, by using the standard normal z-table , the probability demand will exceed 900 units in a month :-
Hence, the probability demand will exceed 900 units in a month=0.1587
a) Using formula , the z-value corresponds to x= 392 will be :
Now, by using the standard normal z-table , the probability demand will be less than 392 units in a month :-
Hence, the probability demand will be less than 392 units in a month = 0.0618
Is it 2 hours every swingset
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Answer:
8.06 is the correct answer
Tan^2x + 1 + tanx - 3 = 0 tan^2x + tanx - 2 = 0 (tanx + 2)(tanx - 1) = 0 tanx = -2 or tanx = 1 x = 2.034 radians or x = 5.176 radians or x = pi/4 radians or x = 5pi/4 radians