Which on is not a function
1 answer:
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The correct answers are:
Exact volume =
in^3
Approximate volume = V = 33.51 in^3
Explanation:
The volume of the sphere is:
Since r = 2 in
Hence
in^3 (exact)
V = 33.51 in^3 (approximate)
Exact volume =
Approximate volume = V = 33.51 in^3
Explanation:
The volume of the sphere is:
Since r = 2 in
Hence
V = 33.51 in^3 (approximate)
Answer:
(a) The mean or expected value of <em>X </em>is 2.2.
(b) The standard deviation of <em>X</em> is 1.3.
Step-by-step explanation:
Let <em>X</em> = number of times the traffic light is red when a commuter passes through the traffic lights.
The probability distribution of <em>X</em> id provided.
The formula to compute the mean or expected value of <em>X </em>is:
The formula to compute the standard deviation of <em>X </em>is:
The formula of E (X²) is:
(a)
Compute the expected value of <em>X</em> as follows:
Thus, the mean or expected value of <em>X </em>is 2.2.
(b)
Compute the value of E (X²) as follows:
Compute the standard deviation of <em>X</em> as follows:
Thus, the standard deviation of <em>X</em> is 1.3.
