<span>212 -(72 divided by 2)=</span>212-36=176
540/3=180
Ashley ran at 180 metres per minute.
480/2= 240
Grace ran at 240 metres per minute.
1. fifteen thousand six hundred thirty eight.
Answer:
18.0167≤x≤21.9833
Step-by-step explanation:
Given the following
sample size n = 10
standard deviation s = 3.2
Sample mean = 20
z-score at 95% = 1.96
Confidence Interval = x ± z×s/√n
Confidence Interval = 20 ± 1.96×3.2/√10
Confidence Interval = 20 ± (1.96×3.2/3.16)
Confidence Interval = 20 ± (1.96×1.0119)
Confidence Interval = 20 ± 1.9833
CI = {20-1.9833, 20+1.9833}
CI = {18.0167, 21.9833}
Hence the required confidence interval is 18.0167≤x≤21.9833
0-1 is 2
2-3 is 6
4-5 is 5
6-7 is 1
you need to count for example all 2 and 3 , and add put it number under 2-3
