Answer:
Hence the value for the mean is 80 and the standard deviation for the original sample is 8.
Step-by-step explanation:
Mean = 83-3 = 80.
Here the standard deviation didn't change = 8.
Answer:
Harry has 120$
Step-by-step explanation
6x+5x=220
11x=220
/11 /11
x=20
6 * 20 = 120
I'd apptreciate help w my questions if u can :)
Answer:
17
Step-by-step explanation:
Since the X's are the same, the only distance we need to find is between the two y's
Answer:
y=-1/3x+3
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Expression on the board :</u>

<u>Expression by the student </u>:
<em><u> Expression 1 </u></em>:

The expression 1 is equivalent to the expression on the board. Because the coefficients of x and y are same on both.
<em><u>Expression 2 :</u></em>
<em><u /></em>
<em><u /></em>
The expression 2 is also equivalent to the expression on the board. Because the coefficients of x and y are the same.