10!/4!2!2!divide using scientific calculator nprc(n,r)= n/r!(n!r!)
1 answer:
You might be interested in
Answer:
(b) For each hour that Michelle drove, she traveled an additional 50 miles.
Step-by-step explanation:
Given
---- start
--- end
Required
Which is true
(a): Journey = 6 hours
This is false, because:
---- 7 hours
(b): The average rate is 50 miles per hour
To do this, we calculate the slope (m) using:
This means that the rate is 50 miles driven in 1 hour.
<em>(b) is correct</em>
<em></em>
<em>Others are incorrect</em>
Answer:
Option B:
Classification:
The hypothesis test is Two-tailed.
Step-by-step explanation:
The mean length of imprisonment for motor-vehicle theft offenders in this country is 22.1 months.
This means that the null hypothesis is that the mean is of 22.1 months, that is:
A hypothesis test is to be performed to determine whether the mean length of imprisonment for motor-vehicle theft offenders in this city differs from the national mean of 22.1 months.
At the alternate hypothesis, we test if this mean is different of 22.1, that is:
Which means that the answer is given by option b).
Which of the following is the correct classification of the hypothesis test?
We test if the mean is different from a value, which means that the hypothesis test is Two-tailed.