11/3*6/11=66/33=2
6 24/20-2 15/20=2 9/20
Answer:
558
Step-by-step explanation:
First you multiply 20 by 28, you'll get 560. then you subtract two and you'll end up with 558
All the angels ect would have to be equal to all of them dose it tell u the angels
Salaries are normally distributed
Average salary per hour: $6.50 ⇒ μ=$6.50
σ=$0.45 (Standard deviation)
Probability that the selected worker will earn $6.75:
P(x>6.75)
Now you must standardize the normal random variables:
If x~N (μσ²) => Z=(x-μ)/σ
Z=(6.75-6.50)/0.45
Z=0.556 => P(Z>0.556)= ? (To find this probability, you must use the tables for Standard normal distribution).
Then:
P(Z>0.556)=0.2877
The probability of selecting a worker who earns more than $ 6.75 is 28.7%