Answer:
The range is 12 answer (D)
Step-by-step explanation:
∵ The range = the largest value - the smallest value
∵ The largest value is 17
∵ The smallest value is 5
∴ The range = 17 - 5 = 12
I think the answer is m=1/5
20 - 200 = -180...negative
Answer:
0.05547
Step-by-step explanation:
Given :
_____Peter __ Alan __ Sui__total
Before 1838 __ 418 ___1475 _3731
After _ 1420 __ 329 ___1140_2889
Total _3258 __ 747 __ 2615 _6620
The expected frequency = (Row total * column total) / N
N = grand total = 6620
Using calculator :
Expected values are :
1836.19 __ 421.006 __ 1473.8
1421.81 ___325.994__ 1141.2
χ² = Σ(Observed - Expected)² / Expected
χ² = (0.00177817 + 0.0214571 + 0.000974852 + 0.00229642 + 0.0277108 + 0.00125897)
χ² = 0.05547
6x+15-4
6x+11
Hope this helps
