The Z-score (z) is calculated according to the formula: z = (x - μ) / σ
Where: x is the raw score value, μ is the mean of the population, σ is the standard deviation of the population.
x = 80, μ = 5, σ = 4
z = (80 - 5) / 4
z = 75 / 4 = 18.7500
Z-score is 18.7500
Answer:
200
Step-by-step explanation:
20% of a book = 40 pages
100% of a book = x pages
20/100 = 40/x Cross multiply
20x = 100*40 Combine the right
20x = 4000 Divide by 20
20x/20 = 4000/20 Do the division
x = 200 Answer
Answer:
10/49
Step-by-step explanation:
You just have to multiply the numerators and denominators from each other, then cancel out the common factors that is 3 only.
:)
Answer:
it cannot be simplified
Step-by-step explanation:
I don't have my calculator handy. But use an online scientific calc. It will hold those digits. And most calculators tht are good will
