Answer:A 52 mph; 64 mph
Step-by-step explanation:
As given r = r(max)/2
k= 50
r(max) = 0.5
By substituting the values,
r= 0.5/2 = 0.25
You have to use following equation to get a value of N
r = r(max) ( 1- N/K)
N/k = 1 - r/r(max)
N/K = 1 - 0.5 = 0.5
N= 50 × 0.5 = 25
Answer:
0.63
Step-by-step explanation:
Only 0.634 matters. If the thousandths place is 5 or greater, it'd be 0.64
Answer:
1.581
Step-by-step explanation:
Given the data:
13 15 14 16 12
The point estimate of the standard deviation will be :
√Σ(x - mean)²/n-1
Mean = Σx / n = 70 / 5 = 14
√[(13 - 14)² + (15 - 14)² + (14 - 14)² + (16 - 14)² + (12 - 14)² / (5 - 1)]
The point estimate of standard deviation is :
1.581
Answer:
(C) 10
Step-by-step explanation:
The numbers inside are the difference between the numbers outside.
Look at the left figure.
6 = 10 - 4
8 = 18 - 10
14 = 18 - 4
Look at the middle figure to confirm this also works there.
Now apply it to the right figure.
? = 15 - 5
? = 10
Answer: (C) 10
