Answer:
He has 5 children
Step-by-step explanation:One boy is a brother to all of them
Answer:
0.11069
Step-by-step explanation:
We will assume that the trains pass by his house following a uniform distribution with values between 0 and 24. The probability of a train passing on a 9-hour time period is 9/24 = 3/8 = 0.375. Lets call Y the amount of trains passing by his house during that 9-hour period. Y follows a Binomail distribution with parameters 22 and 0.375.
P(Y ≤ 5) = P(Y = 0) + P(Y=1) + P(Y=2) + P(Y=3) + P(Y=4) + P(Y=5) =

I hope that works for you!
Answer:
30/40, 75/100, 9/12, 15/20, 24/32
Step-by-step explanation:
all you have to do is multiply the numerator and the denominator by the same number. for example, 3*5 = 15 and 4*5 = 20 so you get 15/20.
Answer:
The median is 2
Step-by-step explanation:
7 0 1 3 1 4 9 0
Arrange the numbers in order from smallest to largest
0 0 1 1 3 4 7 9
The median is the middle number
0 0 1 1 3 4 7 9
It is between 1 and 3, so average 1 and 3
(1+3)/2 = 4/2 =2
Answer:
Its 6 units away
Step-by-step explanation: