Answer:
the probability that a sample of 4 bags will have a mean weight less than 9.8 pounds is 0.05
Step-by-step explanation:
Given the data in the question;
μ_x = 10 pound bags
standard deviation s_x = 0.24 pounds
sample size n = 4
The bag weights are normally distributed so;
p( x' less than 9.8 ) will be;
p( (x'-μ_x' / s_x') < (9.8-μ_x' / s_x') )
we know that;
μ_x' = μ_x = 10
and s_x' = s_x/√n = 0.24/√4
so; we substitute
p( z < ( (9.8 - 10) / (0.24/√4) )
p( z < -0.2 / 0.12 )
p( z < -1.67 )
{ From z-table }
⇒ p( z < -1.67 ) = 0.0475 ≈ 0.05
Therefore, the probability that a sample of 4 bags will have a mean weight less than 9.8 pounds is 0.05
Answer:
√6 is irrational.
Step-by-step explanation:
The square roots of the others are rational
sqrt 0.16 = 0.4
sqrt 900 = 30
sqrt25 = 6.
75 because it’s 75 because if you mitltkruwjbd
Answer:
I've attached the Answer
Step-by-step explanation:
here it is
Answer: $157.50
Step-by-step explanation:
$5250÷100=$52.50
52.50×3=$157.50
