So you're looking for the answer? If so, it is -3/4
Answer:
Step-by-step explanation:
Answer:
The probability is 0.31
Step-by-step explanation:
In this question, we are tasked with calculating the probability that a random plumber called at Denver will charge an amount greater than $86 given the mean and the standard deviation.
Firstly, we calculate the standard score of $86 using the mean and the standard deviation.
Mathematically;
z-score = (x-mean)/SD
where x = 86, mean = 84 and SD = 4
z-score = (86-84)/4 = 2/4 = 0.5
Hence, we want to calculate P(z ≥ 0.5)
Using standard table
P( (z ≥ 0.5) = 1 - P(z ≤ 0.5) = 1 - ( 0.19146 + 0.5) = 0.30854
To the nearest hundredth = 0.31
Answer:
x=8=2=3
Step-by-step explanation:
Answer:
8.14$
Step-by-step explanation:
each pound is for 2.20
2.5 x 2.20 = 5.50$ on Monday
1.2 x 2.20 = 2.64$ on Tuesday
5.50 + 2.64 = 8.14$ in total
