F-1(x) = (3х – 5)2 + 12
2 answers:
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We have
Mean, μ = 25 minutes
Standard Deviation, σ = 6.1
X = 30 minutes
The probability we are looking for is shown in the first diagram; it's the area on the right of X=30
We need to standardized the value X=30 using the formula
rounded to two dp
The z-table is shown on the second diagram only gives the probability when P(Z<z), so to work out the probability when P(Z>z), we do 1-P(Z<z)
P(Z>0.82) = 1 - P(Z<z) = 1 - 0.7939 = 0.2061
Mean, μ = 25 minutes
Standard Deviation, σ = 6.1
X = 30 minutes
The probability we are looking for is shown in the first diagram; it's the area on the right of X=30
We need to standardized the value X=30 using the formula
The z-table is shown on the second diagram only gives the probability when P(Z<z), so to work out the probability when P(Z>z), we do 1-P(Z<z)
P(Z>0.82) = 1 - P(Z<z) = 1 - 0.7939 = 0.2061
Answer:
Step-by-step explanation:
1. You have the following number given in the problem above:
235,452
2. As you can see, it is smaller than a number with seven digits as 1,000,000.
3. You can rewrite 1,000,000 as an integer power of 10, which must have the following form:
Where is the exponent that indicates the number of times that 10 is multiplied by itself.
4. Therefore, you have: