20+64=84 40+44=84 74+10=84 30+54=84
Answer:
a and b
Step-by-step explanation:
i think b i know a for sho
The general formula for the margin of error would be:
z * √[p (1-p) ÷ n]
where:
z = values for selected confidence level
p = sample proportion
n = sample size
Since the confidence level is not given, we can only solve for the
<span>√[p (1-p) ÷ n] part.
</span>
p = 44/70
n = 70
√[44/70 (1 - (44/70) ÷ 70]
√[0.6286 (0.3714)] ÷ 70
√0.2335 ÷ 70
√0.0033357 = 0.05775 or 0.058 Choice B.
Answer:
4:15
Step-by-step explanation:
1:50 + 55 mins
2:45 + 1 hr 30 mins
4:15
