K(cannot equal (the = sign with the line through it) -2
k(=/)-2
Answer:
1/36
Step-by-step explanation:
There's only one situation where you can roll a sum of 2 (1,1)
so the final answer is just 1/36
Answer:
The probability is 0.080757
Step-by-step explanation:
We start by calculating the z-score
z-score = (x-mean)/SD/ √n
In this case;
x = 247 , mean = 240, SD = 50 and n = 100
z-score = (247-240)/50/√100
z-score = 7/50/10
= 7/5 = 1.4
So the probability we want to calculate is;
P( x > 1.4)
we can use the standard normal distribution table for this
P(x > 1.4) = 0.080757
= 6 2/3 / 2/3
= 20/3 / 2/3
= 20/3 x 3/2
= 60/6
=10
It rained for 10 hours.