3.5r.....................
Answer:
see below
Step-by-step explanation:
1st pic: m>-64
2nd pic: x≤
3rd : x>-1.4, use the 4th arrow for this (not filled in circle starts at -1.4)
4th: z>1.25 use 4th arrow again
5th: p ≥ 4 use the 2nd arrow
Answer:
1 quantitative
2 32 responded yes, 18 responded no
3 margin error 32%{n}
4 error of students on their phone / not
5 18/-/50
6 16%
7 2%
Step-by-step explanation:
a 95% confidence interval with a 4 percent margin of error means that your statistic will be within 4 percentage points of the real population value 95% of the time.
The margin of error tells you the range of values above and below a confidence interval.
What is that supposed to be 70, 7 or 700
The proportion pop/total = 5/7 is presumed to hold for the next 500 songs.
pop/500 = 5/7
pop = 500*5/7 ≈ 357
357 of the next 500 songs downloaded are expected to be pop songs.