Answer:
I think the answer is A
Step-by-step explanation:
Answer:
A) 0 , B) 0.0199 , C) 200
Step-by-step explanation:
Let X denotes no. of computers fail on day
X ~ Bin (n = 4 , p = 0.05)
A] P (X = x) = (n c x) p^x q^n-x
P (X = 4) = (4 c 4) (0.005)^4 (0.995)^0
(0.05)^4 ~ 0
B] P (X <u>></u> 1) = 1 - P (X < 1) = 1 - P (X = 0)
1 - { ( 4 c 0) (0.005)^0 (0.995)^ 4 }
1 - (0.995)^ 4 ~ 0.0199
C] Let Y depict mean number of days until a specific computer fails
Y ~ Geom (p = 0.005)
Mean = E (Y) = 1/p = 1/0.05 = 200
Answer:
Center = 15
Spread = 0.599
Shape = Normal
Step-by-step explanation:
The provided information is:
Thus the center(mean) of the distribution is:
The spread (standard deviation) of the distribution is:
The shape of the distribution is also normally distributed.
Answer:
caculate the area of a rectangle of length with 250cm and width with 200cm
Bottom rectangle = 10*7 = 70
Top rectangle = 8*7 = 56
Side rectangle = 6*7 = 42
Side triangle = (1/2)*8*6 = 24
Side triangle = (1/2)*8*6 = 24
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Total surface area = 70+56+42+24+24 = 216
