Answer:
0.68268
Step-by-step explanation:
We solve using z score
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
For x = 85
z = 85 - 105/20
z = -1
Probability value from Z-Table:
P(x = 85) = 0.15866
For x = 125
z = 125 - 105/20
z = 1
Probabilty value from Z-Table:
P(x = 125) = 0.84134
The probability that a randomly selected adult has an IQ between 85 and 125 is calculated as:
P(x = 125) - P(x = 85)
= 0.84134 - 0.15866
= 0.68268
The formula would be y = 1,236,000(1.3)^t
After 10 years, the population would grow to become 17,039,309.59 people. You can round up to 17,039,310 people if the question asks to round to the nearest person.
Answer:
a.
b.
c.
d.
Step-by-step explanation:
Given
Solving (a): When g(x) = 0
Substitute 0 for g(x)
Solve for 8x
Solve for x
Solving (b): when x = 0
Substitute 0 for x
Solving (c): When g(x) = -5
Substitute -5 for g(x)
Solve for 8x
Solve for x
Solving (d): When x = 3
Substitute 3 for x