Answer:
30 mph
Step-by-step explanation:
train stopped after 520 miles
780 miles to go
stopped at 20 hours
stopped for 4 hours
34 hours used up...
26 hours left
780 miles to go
780 miles/26 hrs = 30 m/hr
Answer:
The mean increased, but the median stayed the same
Step-by-step explanation:
The median was 32 both times. The mean was 33.375 and then 33.7
Answer:
I would like to help but my knowledge capacity is not enough to answer this...I'm sorry
By definition, when a test or technique measures what it intends to, it is valid.
The answer is option A.
The criterion-related validity of a take-a-look is measured by the validity coefficient. Its miles said as a number between zero and 1.00 that indicates the significance of the relationship, "r," among the take a look at and a measure of task overall performance (criterion).
Reliability and validity are both approximately how nicely a technique measures something: Reliability refers to the consistency of a measure (whether or not the consequences can be reproduced below identical situations).
Validity refers back to the accuracy of a measure (whether or not the results really do constitute what they may be speculated to a degree).
Learn more about Validity here: brainly.com/question/25759088
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Answer:
r = 4- 2a/3
In the words of the problem, its r = 4 minus two-thirds a
Step-by-step explanation:
You can set up a general equation for this problem, and then solve for r to get your answer. In this case its:
4a + 6r = 24
Now move 4a to the other side by subtracting 4a from both sides:
6r = 24-4a
Finally, divide both sides by 6 to get:
r = 4- 2a/3
In the words of the problem, its r = 4 minus two-thirds a