Answer:
Step-by-step explanation:
The heights of young American women, in inches, are approximately Normally distributed with mean μ and standard deviation σ = 2.4. If I want to construct a 99% confidence interval with a margin of error of no more than ± 1 inch, what is the smallest sample I can select?
4x+6y=8
3x+y=9
y = 9 - 3x
4x + 6( 9-3x ) = 8
4x + 54 - 18x = 8
14x = 46
x = 23/7
y = 9 - 3(23/7)
y = 9 - 69/7
y = - 6/7
Answer:
24
Step-by-step explanation:
i might be misinterpreting the question but i think you would just do 6 × 4 = 24
By substitution
f(6) = 1.8×2^(6)
= 1.8×64
= 115.2