Answer:
x = 1
Step-by-step explanation:
3x + 1/2 (2x + 6) = 6x + 1
3x + x + 3 = 6x + 1
4x + 3 = 6x + 1
2 = 2x
x = 1
Answer:
c) 0
Step-by-step explanation:
m= slope
m= (y2 -y1)/(x2-x1)
we have the points:
(12,6) and (-1,6)
x1= 12 y1= 6
x2= -1 y2= 6
so we have:
m= (6-6)/( -1 -12)
m= 0/ -13
m= 0
Answer:
15.75
Step-by-step explanation:
30% of 350=105 15% of 105=15.75
Answer:
The degrees of freedom are given by;

The significance level is 0.1 so then the critical value would be given by:

If the calculated value is higher than this value we can reject the null hypothesis that the arrivals are uniformly distributed over weekdays
Step-by-step explanation:
For this case we have the following observed values:
Mon 25 Tue 22 Wed 19 Thu 18 Fri 16 Total 100
For this case the expected values for each day are assumed:

The statsitic would be given by:

Where O represent the observed values and E the expected values
The degrees of freedom are given by;

The significance level is 0.1 so then the critical value would be given by:

If the calculated value is higher than this value we can reject the null hypothesis that the arrivals are uniformly distributed over weekdays
Answer:
48 or 47
Step-by-step explanation:
858/18 = 47.6