Let us always base on the present age. We denote this by x. Now, the age he had 2 years ago would then be denoted as (x-2). Let's equate this to 20 years old.
x - 2 = 20
x = 20 + 2
x = 22 years old
He should be 22 years old now.
Let's check the other condition. After 1 year, his age should be (x+1). Let's equate this to 23 years old.
x + 1 = 23
x = 23 - 1
x = 22
Thus, this is possible if Reuben is 22 years old as of the present.
Answer:
the answer is 2. there arwnt any number lines so
Answer:
accept Null hypothesis at ∝ = 0.05
Step-by-step explanation:
To test the hypothesis that: X is b( 3, 0.3 ) ( Null hypothesis )
Let X = number of heads out of three spins
In three spins there were 4 outcomes
Ao = 0 , A1 = 1 , A2 = 2 , A2 = 3 { 0,1,2,3 } outcomes in three spins
next: lets determine the probability of each result
attached below is the detailed solution
H0 : pi = pio
where i = 0,1,2,3
Answer:
Please see attachment.
Step-by-step explanation:
Please see attachment.