Step-by-step explanation:
The plumber's daily earnings have a mean of $145 per day with a standard deviation of
$16.50.
We want to find the probability that the plumber earns between $135 and
$175 on a given day, if the daily earnings follow a normal distribution.
That is we want to find P(135 <X<175).
Let us convert to z-scores using

This means that:

We simplify to get:

From the standard n normal distribution table,
P(z<1.82)=0.9656
P(z<-0.61)=0.2709
To find the area between the two z-scores, we subtract to obtain:
P(-0.61<z<1.82)=0.9656-0.2709=0.6947
This means that:

The correct choice is C.
Answer:
hello there!
The correct option should be the second option and the fourth option!
Step-by-step explanation:
comets usually come from the kuiper belt, and the oort cloud.
anyways, hope this helped! qwq
Answer:
108.60
Step-by-step explanation:
if you need the explanation you can comment
Answer:
-24
Step-by-step explanation:
-8/5 ( -3/2 ) ( -10 )
-8/5 ( -3/2 ) = 24/10 = 12/5 or 2 2/5
12/5 ( -10 ) = -120/5 = -24