I think the answer is 2 percent
hope this is answer
x = number of hours
want to find probability (P) x >= 13
x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.
P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413
To convert that to percentage, multiply 100, to get 84.13%
Answer:
6.76 × 10²
Step-by-step explanation:
5.2 × 
× 1.3 × [/tex]10^{-2}[/tex]
= 5.2 × 1.3 × 
= 6.76 × 10²
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Answer:</h3>
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Step-by-step explanation:</h3>
Scientific notation has exactly one non-zero digit to the left of the decimal point in the mantissa. The numbers listed above do not.
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<em>Comment on these numbers</em>
There may be good reasons for writing the numbers in this form. For example, in engineering, it is often useful to have the exponent be a multiple of 3. In other instances, writing the number in these forms may facilitate arithmetic. However good the reasons may be, these numbers are <em>not</em> in in the form defined as "scientific notation."
