Answer:
The slope would be -0.5
Step-by-step explanation:
y2-y1/x2-x1
12-8=4
2-4=-2
4/-2
convert to decimal
you get -0.5
Hope this helps.
Answer:
Step-by-step explanation:
Given that x = no of movies high school students watched is N(6.8, 1.8)
Sample size = 36 and hence std error = 1.8/6 = 0.3

(two tailed test)
Mean difference = 6.2-6.8 = -0.6
Test statistic z = -0.6/0.3= -2
p value = 0.02275
Since p <0.05 we reject H0.
There is evidence to show that college students watch fewer movies a month than high school students
Answer:
3 2/3
Step-by-step explanation:
7(3x-4)=49
21x-28=49
21x=77
x=3 2/3
Answer:
32/20=1.6
Step-by-step explanation:
the 9th term for 4,10,16,12 is add 6