Hello,
Answer B: false
the parallelogram is a rectangle
Answer:
The probability that the proportion of passed keypads is between 0.72 and 0.80 is 0.6677.
Step-by-step explanation:
According to the Central limit theorem, if from an unknown population large samples of sizes <em>n</em> > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.
The mean of this sampling distribution of sample proportion is:

The standard deviation of this sampling distribution of sample proportion is:

Let <em>p</em> = the proportion of keypads that pass inspection at a cell phone assembly plant.
The probability that a randomly selected cell phone keypad passes the inspection is, <em>p</em> = 0.77.
A random sample of <em>n</em> = 111 keypads is analyzed.
Then the sampling distribution of
is:

Compute the probability that the proportion of passed keypads is between 0.72 and 0.80 as follows:


Thus, the probability that the proportion of passed keypads is between 0.72 and 0.80 is 0.6677.
Answer:
24
Step-by-step explanation:
8 and 3 can both go into 24
3/8 --> 3*3=9 8*3=24 --> 9/24
1/3 --> 1*8=8 3*8=24 --> 8/24
Answer:
One metric ton is equal to a 1000 kilograms.
Answer:
16
Step-by-step explanation:

There are numerous ways to work a problem like this. One is shown above, where we multiply by the inverse of the denominator.
For this you can always use a calculator. Be sure to use parentheses around the denominator fraction.