How do you write 6.37 in scientific notation?
2 answers:
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Answer:
E(x)=0.15
V(x)=0.3075
S(x)=0.5545
Step-by-step explanation:
The mean of a discrete variable is calculated as:
where are the values that the variable can take and
are their respective probabilities.
So, if we call x the number of defective transistors in cartons, we can calculate the mean E(x) as:
Because there are 0 defective transistor with a probability of 0.92, 1 defective transistor with a probability of 0.03, 2 defective transistors with a probability of 0.03 and 3 defective transistors with a probability of 0.01.
At the same way, the variance V(x) is calculated as:
Where
So, the variance V(x) is equal to:
Finally, the standard deviation is calculated as:
Answer:
The distance between the longest dog and the shortest dog is 4 over 8 ( ) OR 1 over 2 (
)
Step-by-step explanation:
From the question,
Short is 7 over 8, that is,
Short =
and longest is 3 over 8, that is
Longest =
The distance between the longest dog and the shortest dog can be determined by finding the difference between the fractions. That is,
Hence, the distance between the longest dog and the shortest dog is 4 over 8 ( ) OR 1 over 2 (
).