Answer:<em> the answer is......</em>
<em>X=1 and X=2 or if you want the other way its </em>
<em>X=2.28077640640442 X=0.21922359359585</em>
Step-by-step explanation:
Trust me its right
Answer:
63
Step-by-step explanation:
5 x 13 = 63
is this what you asked for?
The new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.
According to the question,
Original mean is 10 and original standard deviation is 5 . In order to find to new mean and standard deviation when each score in data set is multiplied by 5 and then 7 is added.
First "change of scale" when every score in a data set is multiplied by a constant, its mean and standard deviation is multiplied by a same constant.
Mean: 10*3 = 30
Standard deviation: 5*3 = 15
Secondly "change of origin" when every score in a data set by a constant, its mean get added or subtracted by the same constant and standard deviation remains constant.
Applying change of origin in the above mean and standard deviation
Mean: 30 - 4 = 26
Standard deviation: Remains same = 15
Hence, the new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.
Learn more about Mean and standard deviation here
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Add 6 to both sides
Solution: k = -30
Answer:
96
Step-by-step
explanation:
400−2x=208. 400−208=2x. 192=2x. x=96
