Answer:
0.7734; no, it does not.
Step-by-step explanation:
To find this probability we will use a z-score. We are dealing with the probability of a sample mean being larger than a given value; this means we use the formula
Our x-bar in this problem is 155, as that is the sample mean we are trying to find the probability of. Our mean, μ, is 161 and our standard deviation, σ, is 31. Our sample size, n, is 15. This gives us
Using a z table, we see that the area under the curve less than this, corresponding with probability less than this value, is 0.2266. This means that the probability of the sample mean being larger than this is
1-0.2266 = 0.7734, or 77.34%.
Since there is a 77.34% chance of the passengers having a mean weight that is too heavy, this elevator is not safe.
Answer:
See step-by-step explanation
Step-by-step explanation:
Whole numbers are 
Integer but not whole numbers are 
Rational numbers are fractions
Irrational numbers are numbers that are not rational
is irrational number
is integer but not whole number
is integer but not whole number
is integer but not whole number
is integer but not whole number
is rational number
is irrational number
is whole number
is rational number
is whole number
is irrational number
is rational number
is whole number
is rational number
is whole number
Answer:
12 nickels, 9 quarters, 15 dimes
Step-by-step explanation:
Let's call the number of nickels n, the number of dimes d, and the number of quarters q. Now, we can set up the following equations:
n+d+q=36
q=n-3
d=q+6
Now, we can do some substitution:
d=(n-3)+6=n+3
Plugging this into the first equation, you get:
n+(n+3)+(n-3)=36
3n=36
n=12
There are twelve nickels, meaning that there are 9 quarters and 15 dimes. Hope this helps!
You returned 5 shirts.
Simply divide $30.60 by $6.12
Hope this helps!
STSN
