During the early part of the 1994 baseball season, many sports fans and baseball players noticed that the number of home runs be
1 answer:
Answer:a
a
b
Step-by-step explanation:
From the question we told that
The stem plots for American League is
Here the first column is the tens while each digit in the in the second column is the unit of the first column
For example row 3 means
40 , 43, 49
The sample size is n = 14
Generally the median is mathematically represented as
Here K is the i.e
From the stem plot the 7th term is 57
And
K is the i.e
From the stem plot the 8th term is 58
Thus the median is
=>
The stem plots for National League is
Generally the mean is mathematically evaluated as
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9514 1404 393
Answer:
5 hours
Step-by-step explanation:
A quick way to look at this is to compare the difference in hourly charge to the difference in 0-hour charge.
The first day, the charge is $3 more than $12 per hour.
The second day, the charge is $12 less than $15 per hour.
The difference in 0-hour charges is 3 -(-12) = 15. The difference in per-hour charges is 15 -12 = 3. The ratio of these is ...
$15/($3/h) = 5 h
The charges are the same after 5 hours.
__
If you write equations for the charges, they will look like ...
y1 = 15 + 12(x -1)
y2 = 3 + 15(x -1)
Equating these charges, we have ...
15 +12(x -1) = 3 + 15(x -1)
12x +3 = 15x -12 . . . . . . . . eliminate parentheses
15 = 3x . . . . . . . . . . add 12-12x
x = 15/3 = 5 . . . . . . divide by 3
You might notice that the math here is very similar to that described in words, above.
The charges are the same after 5 hours.
