The answer should be 3 hours and 45 minutes if i did the math in my head correctly
Answer:
$122.1
Step-by-step explanation:
We are given the following data in the question
$124, $256 , $118, $441, $122, $335, $340, $191
Step 1
Find the mean
Mean = Sum of Terms / Number of Terms
Number of Terms = 8
Mean = ($124 + $256 + $118 + $441 + $122 + $335 + $340 + $191 )/ 8
Mean = $1927/8
= $240.875
Approximately to 1 decimal place
$240.9
Step 2
Standard deviation formula
S = √( x - μ)²/ N - 1),
N = Number of terms
μ = Mean
S = √[($124 - $240.9)² + ($256 - $240.9)² + ($118 - $240.9)² + ($441 - $240.9)² + ($122 - $240.9)² + ($335 - $240.9)² + ($340 - $240.9)²+ ($191 -$240.9)²/ 8 - 1]
S = $122.0895
Approximately to 1 decimal place
S = $122.1
Therefore, the standard deviation for the given data is $122.1
Answer:
<u>Step-by-step explanation: being random if the periodic interval is determined beforehand and the starting point is random</u>
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48:
48/2 = 24
24/2 = 12
12/2 = 6
6/2 = 3
We can not divide by 2, but we can divide by 3:
3/3 = 1
That's as far as we go. So I divided by 2 four times and once by 3:
Therefore:
48 = 2 * 2 * 2 * 2 * 3
Now we take 72
72 / 2 = 36
36 / 2 = 18
18 / 2 = 9
Nine is not divisible by 2, but it is by 3, so:
9 / 3 = 3
3 / 3 = 1
That's as far as we can go.
I divided by 2 three times and by 3 two times. Therefore
72 = 2 * 2 * 2 * 3 * 3
So, taking the bigger picture:
<span><span>4872</span>=<span><span>2∗2∗2∗2∗3</span><span>2∗2∗2∗3∗3</span></span></span>
Now three two's cancel out and one three cancels out and we get
<span>2\3
answer=2\3</span>
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