Answer:
D. is your answer
Step-by-step explanation:

Shiela is 0.61 meters taller than her son.
Step-by-step explanation:
if he had three pets 1 ran away then 2 pets ran away.
And thnx for the free point :)
Answer:
k = 4 ;
N = 52
Step-by-step explanation:
Given the ratio F(3, 48)
F takes in degree of freedom values; degree of freedom of groups ; degree of freedom of error
Hence,
df group or treatment = 3
df error = 48
df treatment = k - 1
k = Number of groups
3 = k - 1
3 + 1 = k - 1 + 1
4 = k
Number of treatment condition = 4
df error = N-k
N = total number of observations
48 = N - 4
48 + 4 = N - 4 + 4
52 = N